Preimplantation genetic diagnosis and some prenatal screening programmes have been criticized for being 'eugenic'. This paper aims to analyse this criticism and to evaluate one of the main ethical arguments lying behind it. It starts with a discussion of the meaning of the term 'eugenics' and of some relevant distinctions: for example, that between objections to eugenic ends and objections to certain means of achieving them. Next, a particular argument against using preimplantation genetic diagnosis to 'screen out' disability is considered, (...) one based on the Equal Value Principle, which says that we should value disability and non-disability equally. It is argued that present practice and policy probably do violate the Equal Value Principle, but that this principle is itself unsound. (shrink)

Recent research with human embryos, in different parts of the world, has sparked a new debate on the ethics of genetic human enhancement. This debate, however, has mainly focused on gene-editing technologies, especially CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats). Less attention has been given to the prospect of pursuing genetic human enhancement by means of IVF (In Vitro Fertilisation) in conjunction with in vitro gametogenesis, genome-wide association studies, and embryo selection. This article examines the different ethical implications (...) of the quest for cognitive enhancement by means of gene-editing on the one hand, and embryo selection on the other. The article focuses on the ethics of cognitive enhancement by means of embryo selection, as this technology is more likely to become commercially available before cognitive enhancement by means of gene-editing. This article argues that the philosophical debate on the ethics of enhancement should take into consideration public attitudes to research on human genomics and human enhancement technologies. The article discusses, then, some of the recent findings of the SIENNA Project, which in 2019 conducted a survey on public attitudes to human genomics and human enhancement technologies in 11 countries (France, Germany, Greece, the Netherlands, Poland, Spain, Sweden, Brazil, South Africa, South Korea, and United States). (shrink)

The prelims comprise: Introduction Better Alternative Than Abortion? The Morality of Prenatal Diagnosis Prenatal Genetic Testing as Prevention The Line‐drawing Question Conclusion Note.

One prominent argument against the use of preimplantation genetic diagnosis to select a deaf embryo with the aim of creating a deaf child is that it violates the child’s right to an open future. This paper challenges the open future argument against deaf embryo selection, criticizing its major premise that deafness limits a child’s opportunity range in ways that compromise their future autonomy. I argue that this premise is not justified and is supported by negative presumptions about (...) deaf embodiments that are suspect and in need of further argumentation. First, available interpretations of the open future concept fail to justify the devaluation of deaf traits as inherently autonomy-diminishing. Second, arguing against deaf embryo selection requires demonstrating that a deaf trait generally constrains opportunity ranges independent of social context. But such analyses neglect important social and relational components of autonomy. For these reasons, merely appealing to the child’s right to an open future does not sufficiently support the conclusion that deaf embryo selection is wrong. (shrink)

A preimplantation genetic test to discriminate between severe and mild autism spectrum disorder might be developed in the foreseeable future. Recently, the philosophers Julian Savulescu and Guy Kahane claimed that there are strong reasons for prospective parents to make use of such a test to prevent the birth of children who are disposed to autism or Asperger’s disorder. In this paper we will criticize this claim. We will discuss the morality of selection for mild autism in embryo (...) class='Hi'>selection in a hypothetical in vitro fertilization (IVF) situation where preimplantation genetic diagnosis is performed and compare this with a similar selection for congenital deafness. To do this we first discuss relevant human differences. We then introduce the principle of human capabilities (PC) and compare this principle with the principle of procreative beneficence (PB) introduced by Savulescu and Kahane. We apply the two principles to selection for mild autism and selection for congenital deafness. We argue that PC allows for the selection for mild autism but rules out selection for congenital deafness. PB will not give clear answers; the ruling of PB depends to a large extent on expected social, cultural and political developments. We will argue that PC is preferable to PB. We will discuss arguments for the value of mild autism for individuals who have this condition and argue that they are able to lead a life with human dignity provided autism-friendly social circumstances are present. Neither PC nor PB yields strong reasons for prospective parents to seek to prevent the birth of children who are disposed to mild autism spectrum disorder. (shrink)

The present article describes and critically evaluates the medical/social distinction as used in the context of embryo selection through pre-implantation genetic diagnosis . According to such a distinction, while embryo selection for medical purposes, for example preventing the birth of a child with severe genetic disease, may be ethically justified, screening and the selection of embryos for social reasons, such as the implantation of an embryo of specific gender or one that carries the gene (...) responsible for intelligence, should not be allowed. The article challenges the automatic and repeated use of such a distinction in ethical debates concerning PGD. It is argued that existing justifications for the medical/social distinction seem not to support the conclusion that such a distinction should determine whether embryos should be returned for implantation or misused by genetic parents in a conclusive way. The article further analyzes alternative proposals to the medical/social distinction in light of which embryo selection should be ethical, and concludes with the author’s own proposal for ethical reasoning in the area of embryo selection. Under such a proposal, any embryo selection that would, on balance, increase the variety of potential life plans for the future child from which he or she will be able to choose is prima facie ethically justifiable. (shrink)

Margaret Brazier has argued that, in the literature on reproductive technology, women's “right” to reproduce is privileged, pushed, and subordinated to patriarchal values in such a way that it amounts to women's old “duty” to reproduce, dressed up in modern guise. I agree that there are patriarchal assumptions made in discussions of whether women have a right to select which embryos to implant or which fetuses to carry to term. Forcing ourselves to see women as active, rational decisionmakers tends to (...) counteract any lingering patriarchal assumptions. But rational decisionmaking requires information. Voting wisely requires information about the candidates. Taking women's reproductive rights seriously means taking seriously women's need for relevant information to make rational decisions, including decisions about which embryos to implant or alter. I argue that preimplantation genetic profiles and prenatal test information should be made available to prospective parents, especially prospective mothers, unless doing so threatens to harm the resulting child or the larger society in specifiable and important ways. (shrink)

The primary question to be addressed here is whether pre-implantation genetic diagnosis (PGD), used for both negative and positive trait selection, benefits potential supernumerary embryos. The phrase ‘potential supernumerary embryos’ is used to indicate that PGD is typically performed on a set of embryos, only some of which will be implanted. Prior to any testing, each embryo in the set is potentially supernumerary in the sense that it may not be selected for implantation. Those embryos that are not (...) selected, and hence destroyed or frozen, are ‘actually supernumerary’. The argument to be advanced is hypothetical: If embryos may be said to benefit or be harmed by our actions, then PGD used to select for an embryo or embryos with the highest expected Wellbeing benefits potential supernumerary embryos. The argument shows that the ‘non-identity’ problem is not sufficient to show that eugenic selection does not benefit supernumerary embryos. (shrink)

In recent years, preimplantation genetic testing (PGT) of IVF embryos have gained much traction in clinical assisted reproduction for preventing various genetic defects, including Down syndrome. However, such genetic tests inevitably reveal the sex of IVF embryos by identifying the sex (X and Y) chromosomes. In many countries with less stringent IVF regulations, information on the sex of embryos that are tested to be genetically normal is readily shared with patients. This would thus present Muslim patients with unintended opportunities for (...) sex selection based on personal or social biases without any pressing need or valid medical reason. Additionally, there are other patients who claim using PGT for preventing genetic defects as a pretext or “convenient excuse,” with a secret intention to do sex selection when it is banned in their home country. Currently, non-medical sex selection is a highly-controversial and hotly debated issue in Islam, because there is generally a strong preference for having sons over daughters due to widespread cultural norms of elderly parents depending on their sons for financial support, as well as the need for male heirs to continue the family lineage within the backdrop of local patriarchal cultures. There is a risk of gender imbalance and social disequilibrium occurring in Islamic societies due to prevalent sex selection. Hence, the question is whether opportunistic sex selection with PGT would contravene Islamic ethics and principles, which will thus be discussed here. (shrink)

This article discusses an anomaly in the English law of reproductive liability: that is, an inconsistency between the law’s approach to wrongful life claims and its approach to cases of negligent selection of gametes or embryos in infertility treatments (the selection cases). The article begins with an account of the legal position, which brings into view the relevant inconsistency: while the law treats wrongful life claims as non- actionable, it recognises a cause of action in the selection (...) cases, although the selection cases bear a relevant resemblance to wrongful life claims. The article then considers arguments that may be invoked in an attempt to reconcile the above two strands of the law. Three of these counterarguments consist in attempts to distinguish the selection cases from wrongful life claims. It is argued that these attempts fail to reveal a valid basis for treating these situations differently. A fourth possible counterargument levels against the present analysis a charge of reductio ad absurdum. It is shown that this argument suffers from a fundamental flaw caused by confusion between different senses of the term “identity”. Finally, the article discusses possible changes to the legal position that could rectify the problem. It argues that one of these changes, which focuses on legal redress for violation of personal autonomy, is particularly apt to resolve the problem at hand, but also highlights the need for further inquiry into the broader implications of introducing this form of redress into the law of torts. (shrink)

If genetic diagnosis and preimplantation selection could be employed to produce deaf children, would it be acceptable for deaf parents to do so? Some say no, because there is no moral difference between selecting a deaf embryo and deafening a hearing child, and because it would be wrong to deafen infants. It is argued in this paper, however, that this view is untenable. There are differences between the two activities, and it is perfectly possible to condone genetic (...) class='Hi'>selection for deafness while condemning attempts to deafen infants at birth. (shrink)

In recent years, the genetic testing and selection of IVF embryos, known as preimplantation genetic testing (PGT), has gained much traction in clinical assisted reproduction for preventing transmission of genetic defects. However, a more recent ethically and morally controversial development in PGT is its possible use in selecting IVF embryos for optimal intelligence quotient (IQ) and other non–disease-related socially desirable traits, such as tallness, fair complexion, athletic ability, and eye and hair colour, based on polygenic risk scores (PRS), in (...) what is referred to as PGT-P. Artificial intelligence (AI) and machine learning–based analysis of big data sets collated from genome sequencing of specific human ethnic populations can be used to estimate an individual embryo’s likelihood of developing such multifactorial traits by analysing the combination of specific genetic variants within its genome. Superficially, this technique appears compliant with Islamic principles and ethics. Because there is no modification of the human genome, there is no tampering with Allah’s creation (_taghyīr khalq Allah_). Nevertheless, a more critical analysis based on the five maxims of Islamic jurisprudence (_qawa'id fiqhiyyah_) that are often utilized in discourses on Islamic bioethics, namely _qaṣd_ (intention), _yaqın̄_ (certainty), _ḍarar_ (injury), _ḍarūra_ (necessity), and _`urf_ (custom), would instead reveal some major ethical and moral flaws of this new medical technology in the selection of non–disease-related socially desirable traits, and its non-compliance with the spirit and essence of Islamic law (shariah). Muslim scholars, jurists, doctors, and biomedical scientists should debate this further and issue a fatwa on this new medical technology platform. (shrink)

The purpose of this article is to ascertain and appraise the ethical issues inherent to the utilisation of preimplantation genetic diagnosis for gender selection in infertile patients anticipating undergoing a medically indicated assisted reproductive technique procedure. Performance of preimplantation genetic diagnosis per request specifically for gender selection by an infertile couple undergoing medically indicated assisted reproductive technique may not breach the principles of ethics, and is unlikely to alter the population balance of sexes.

The purpose of this article is to ascertain and appraise the ethical issues inherent to the utilisation of preimplantation genetic diagnosis for gender selection in infertile patients anticipating undergoing a medically indicated assisted reproductive technique procedure. Performance of preimplantation genetic diagnosis per request specifically for gender selection by an infertile couple undergoing medically indicated assisted reproductive technique may not breach the principles of ethics, and is unlikely to alter the population balance of sexes.

Testing embryonic cells for genetic abnormalities gives us the capacity to predict whether and to what extent people will exist with disease and disability. Moreover, the freezing of embryos for long periods of time enables us to alter the length of a normal human lifespan. After highlighting the shortcomings of somatic‐cell gene therapy and germ‐line genetic alteration, I argue that the testing and selective termination of genetically defective embryos is the only medically and morally defensible way to prevent the existence (...) of people with severe disability, pain and suffering that make their lives not worth living for them on the whole. In addition, I consider the possible harmful effects on children born from frozen embryos after the deaths of their biological parents, or when their parents are at an advanced age. I also explore whether embryos have moral status and whether the prospects for disease‐preventing genetic alteration can justify long‐term cryopreservation of embryos. (shrink)

A central question in the ethical debate on the practice of relinquishing in vitro fertilization surplus embryos for family building is whether we ought to think of it more in terms of donating these embryos or in terms of having them adopted. Deciding between these two alternatives is more than a matter of mere terminology. It has an impact on normative questions, e.g., on the question of what criteria for parent selection ought to be applied to the recipients of (...) the embryos, and on the moral evaluation of the act of ‘donating’ the embryo or ‘having it adopted’. In this article, I defend the view that we should conceptualize the relinquishment of spare embryos according to the adoption model, not as a donation. Section 2 sketches the outline of the argument by making clear how we may ground a defense of the adoption model in a theory of parental responsibility without implicitly elevating the moral status of the embryo. Section 3 contains a preliminary defense of the adoption model that draws on geneticism as what seems to me the most persuasive theory of parental responsibility. In section 4, I examine three objections to geneticism and either rebut them or, insofar as they are justified, try to accommodate them into my view. In section 5, I point out some features that distinguish embryo adoption from the adoption of (born) children. I contend, however, that these differences are compatible with the adoption model. Section 6 is concerned with the normative ramifications of this view. (shrink)

Light sheet microscopy is an easy to implement and extremely powerful alternative to established fluorescence imaging techniques such as laser scanning confocal, multi‐photon and spinning disk microscopy. By illuminating the sample only with a thin slice of light, photo‐bleaching is reduced to a minimum, making light sheet microscopy ideal for non‐destructive imaging of fragile samples over extended periods of time. Millimeter‐sized samples can be imaged rapidly with high resolution and high depth penetration. A large variety of instruments have been developed (...) and optimized for a number of different samples: Bessel beams form thin light sheets for single cells, and selective plane illumination microscopy (SPIM) offers multi‐view acquisition to image entire embryos with isotropic resolution. This review explains how light sheet microscopy involves a conceptually new microscope design and how it changes modern imaging in biology. (shrink)

Selection against embryos that are predisposed to develop disabilities is one of the less controversial uses of embryo selection technologies. Many bio-conservatives argue that while the use of ESTs to select for non-disease-related traits, such as height and eye-colour, should be banned, their use to avoid disease and disability should be permitted. Nevertheless, there remains significant opposition, particularly from the disability rights movement, to the use of ESTs to select against disability. In this article we examine whether (...) and why the state could be justified in restricting the use of ESTs to select against disability. We first outline the challenge posed by proponents of ‘liberal eugenics’. Liberal eugenicists challenge those who defend restrictions on the use of ESTs to show why the use of these technologies would create a harm of the type and magnitude required to justify coercive measures. We argue that this challenge could be met by adverting to the risk of harms to future persons that would result from a loss of certain forms of cognitive diversity. We suggest that this risk establishes a pro tanto case for restricting selection against some disabilities, including dyslexia and Asperger's syndrome. (shrink)

For now, the best way to select a child's genes is to select a potential child who has those genes, using genetic testing and either selective abortion, sperm and egg donors, or selecting embryos for implantation. Some people even wish to select against genes that are only mildly undesirable, or to select for superior genes. I call this selection drift– the standard for acceptable children is creeping upwards. The President's Council on Bioethics and others have raised the parental love (...) objection: Just as we should love existing children unconditionally, so we should unconditionally accept whatever child we get in the natural course of things. If we set conditions on which child we get, we are setting conditions on our love for whatever child we get. Although this objection was prompted by selection drift, it also seems to cover selecting against genes for severe impairments. I argue that selection drift is not inconsistent with the ideal of unconditional parental love and, moreover, that the latter actually implies that we should practise selection drift – in other words, we should try to select potential children with the best genetic endowments. My endowment argument for the second claim works from an analogy between arranging an endowment prior to conception to fund a future child's education, and arranging a genetic endowment by selecting a potential child who already has it, where in both cases the child would not have existed without the endowment. I conclude with some programmatic remarks about the nonidentity problem. (shrink)

Written over several decades and collected together for the first time, these richly detailed contextual studies by a leading historian of science examine the diverse ways in which cultural values and political and professional considerations impinged upon the construction, acceptance and applications of nineteenth century evolutionary theory. They include a number of interrelated analyses of the highly politicised roles of embryos and monsters in pre- and post- Darwinian evolutionary theorizing, including Darwin's; several studies of the intersection of Darwinian science and (...) its practitioners with issues of gender, race and sexuality, featuring a pioneering contextual analysis of Darwin's theory of sexual selection; and explorations of responses to Darwinian science by notable Victorian women intellectuals, including the crusading anti-feminist and ardent Darwinian, Eliza Lynn Linton, the feminist and leading anti-vivisectionist Frances Power Cobbe, and Annie Besant, the bible-bashing, birth-control advocate who confronted Darwin's opposition to contraception at the notorious Knowlton Trial. (shrink)

Traditional model systems such as fly, mouse, and chick have formed the foundation of the EvoDevo research program. These animal systems have provided a wealth of information on the patterns and mechanisms of developmental change over large phylogenetic scales. However, the almost exclusive focus on individual embryos as model organisms has also limited the field’s ability to address the central roles that natural selection and life history adaptation play in the evolution of developmental systems. Likewise, focus on this small (...) set of “unitary” model organisms may also constrain the explanatory reach and theoretical robustness of EvoDevo if we consider that many core developmental processes like homeostatic regulation, ontogenetic differentiation, and norms of reaction are also manifest at other levels of biological organization, such as colonial organisms. The study of social insect systems can help bridge these considerable gaps in EvoDevo’s current approach. Because social insect colonies span the fine line between simple associations of “unitary” organisms and full-fledged “superorganisms,” these systems help elucidate what kinds of processes fundamentally characterize developmental systems and their evolution. What is more, the traits of social insect colonies show high degrees of population-level variability that can be linked directly to selective factors in the environment, making them ideal systems in which to more fully integrate EcoEvoDevo approaches. (shrink)

This paper stems from an ethnographic, multidisciplinary study that explored the views and experiences of practitioners and scientists on social, ethical and clinical dilemmas encountered when working in the area of pre-implantation genetic diagnosis for serious genetic disorders. We focus here on staff perceptions and experiences of working with embryos and helping women/couples to make choices that will result in selecting embryos for transfer and disposal of 'affected' embryos, compared to the termination of affected pregnancies following prenatal diagnosis. Analysis and (...) discussion of our data led us to consider the possible advantages of pre-implantation genetic diagnosis and whether a gradualist account of the embryo's and fetus's moral status can account for all of these, particularly since a gradualist account concentrates on the significance of time (developmental stage) and makes no comment as to the significance of place (in vitro, in utero). (shrink)

Non‐invasive microanalytical methods have been devised to study the energy metabolism of single human preimplantation embryos. Psyruvate, which is added routinely to all media used to culture human embryos, is consumed throughout the preimplantation period, with glucose assuming an increasing role at embryo compaction and blastocyst formation. All of the glucose consumed may be accounted for by the appearance of lactate in the incubation medium. The enzyme hexokinase my be involved in regulating this aerobic glycolysis. There is cosiderable indirect (...) evidence for the utilisation of endogenous as opposed to exogenous energy substrates, the most likely candidate being protein. Information on early human embryo metabolismis likely to find application in a number of areas: these include the improvement of techniques for assisted human conception, notably in the selection of embryos for transfer following In Vitro Fertilisation; the diagnosis of gentic defects at the preimplantation stage; increased undersding of the causes of implantation failure and miscarriage, and the development of novel post‐coital contraceptives. (shrink)

By using tissue typing in conjunction with preimplantation genetic diagnosis doctors are able to pick a human embryo for implantation which, if all goes well, will become a “saviour sibling”, a brother or sister capable of donating life-saving tissue to an existing child.This paper addresses the question of whether this form of selection should be banned and concludes that it should not. Three main prohibitionist arguments are considered and found wanting: the claim that saviour siblings would be treated (...) as commodities; a slippery slope argument, which suggests that this practice will lead to the creation of so-called “designer babies”; and a child welfare argument, according to which saviour siblings will be physically and/or psychologically harmed. (shrink)

This paper will examine the recent Human Fertilisation and Embryology Authority public consultation on sex selection. It will review the current regulation on sex selection in the United Kingdom and critically examine the outcomes of the HFEA consultation. The paper will argue that the current ban on embryo sex selection for social reasons and a proposed ban on sperm selection are not justified. There is no evidence for sex selection causing an increase in sex (...) discrimination; creating a slippery slope towards selection for other non-disease characteristics; or promoting a consumerist attitude towards children. The HFEA recommendations to prohibit social sex selection techniques rely upon an unwarranted concern about the risk of the procedures used. Reproductive technologies should be made available to people unless a substantial risk of harm—to the child, the parents or to society—can be identified. There is no such evidence of harm in this case. (shrink)

Should nonprejudiced reproducers genetically select embryos for light skin under background conditions of racism and colourism, given that darker skin will be disadvantageous for their child? Many intuit that there are strong moral reasons not to select light skin in these contexts. I argue that existing procreative principles cannot adequately account for this judgement. Instead, I argue that a more compelling rationale for this intuition is that such selection completes an instance of race or colour injustice. Given this, I (...) propose a new, complementary principle—Procreative Justice—which holds that reproducers have strong pro tanto moral reasons to avoid completing race and colour injustices via their selection choices. While these reasons may be overridden by competing considerations, they nonetheless continue to exert normative force. (shrink)

The national ethical guidelines relevant to assisted reproductive technology have recently been reviewed by the National Health and Medical Research Council. The review process paid particular attention to the issue of non-medical sex selection, although ultimately, the updated ethical guidelines maintain the pre-consultation position of a prohibition on non-medical sex selection. Whilst this recent review process provided a public forum for debate and discussion of this ethically contentious issue, the Victorian case of JS and LS v Patient Review (...) Panel [2011] VCAT 856 provides a rare instance where the prohibition on non-medical sex selection has been explored by a court or tribunal in Australia. This paper analyses the reasoning in that decision, focusing specifically on how the Victorian Civil and Administrative Tribunal applied the statutory framework relevant to ART and its comparison to other uses of embryo selection technologies. The Tribunal relied heavily upon the welfare-of-the-child principle under the Assisted Reproductive Treatment Act 2008. The Tribunal also compared non-medical sex selection with saviour sibling selection. Our analysis leads us to conclude that the Tribunal’s reasoning fails to adequately justify the denial of the applicants’ request to utilize ART services to select the sex of their prospective child. (shrink)

Recent scientific advances in the field of gene editing have led to a renewed discussion on the moral acceptability of human germline modifications. Gene editing methods can be used on human embryos and gametes in order to change DNA sequences that are associated with diseases. Modifying the human germline, however, is currently illegal in many countries but has been suggested as a ‘last resort’ option in some reports. In contrast, preimplantation genetic diagnosis is now a well-established practice within reproductive medicine. (...) Both methods can be used to prevent children from being born with severe genetic diseases. This paper focuses on four moral concerns raised in the debate about germline gene editing and applies them to the practice of PGD for comparison: Violation of human dignity, disrespect of the autonomy and the physical integrity of the future child, discrimination of people living with a disability and the fear of slippery slope towards immoral usage of the technology, e.g. designing children for specific third party interests. Our analysis did not reveal any fundamental differences with regard to the four concerns. We argue that with regard to the four arguments analyzed in this paper germline gene editing should be considered morally as acceptable as the selection of genomes on the basis of PGD. However, we also argue that any application of GGE in reproductive medicine should be put on hold until thorough and comprehensive laws have been implemented to prevent the abuse of GGE for non-medical enhancement. (shrink)

For most of human history children have been a byproduct of sex rather than a conscious choice by parents to create people with traits that they care about. As our understanding of genetics advances along with our ability to control reproduction and manipulate genes, prospective parents have stronger moral reasons to consider how their choices are likely to affect their children, and how their children are likely to affect other people. With the advent of cheap and effective contraception, and the (...) emergence of new technologies for in vitro fertilization, embryo selection, and genetic engineering, it is becoming increasingly difficult to justify rolling the genetic dice by having children without thinking about the traits they will have. It is time to face up to the awesome responsibilities that accompany our reproductive choices. (shrink)

By using preimplantation haplotype diagnosis, prospective parents are able to select embryos to implant through in vitro fertilization. If we knew that the naturally-occurring (but theoretical) MoralKinder (MK+) haplotype would predispose individuals to a higher level of morality than average, is it permissible or obligatory to select for the MK+ haplotype? I.e., is it moral to select for morality? This paper explores the various potential issues that could arise from genetic moral enhancement.

In lieu of an abstract, here is a brief excerpt of the content:The Journal of Aesthetic Education 38.2 (2004) 53-66 [Access article in PDF] Art Selection, or the Preservation of Artworks in the Struggle for Art Christopher Perricone The argument of George C. Williams's book Adaptation and Natural Selection is against what biologists call the group selectionist view — that individuals will act on behalf of their species, or at least on behalf of the group to which they (...) belong.1 Williams showed, and now most biologists agree, "no creature could ever evolve the ability to help its species at the expense of itself. Only when the two interests coincided would it act selflessly."2 According to Matt Ridley, Williams is one of the towering figures in contemporary biology. Williams helps us to understand better what natural selection is and consequently helps us to understand better our place in the world. Williams claims that when we are dealing with life, "we are forced to invoke natural selection to achieve a complete explanation of an observed system."3 Physics and chemistry alone are not sufficient to explain life. Williams gives the example of a falling apple. If one has to explain the trajectory of the apple, the principles of mechanics are sufficient for providing an adequate explanation of the phenomenon. If, however, we were asked how the apple acquired its various properties, and why it has these properties instead of others, we would need the theory of natural selection, at least by implication. Only thus could we explain why the apple has a waterproof wax on the outside...why it contains dormant embryos....We would find that an impressive list of structural details and processes of the apple can be understood as elements of a design for an efficient role in the propagation of the tree from which it came."4Of course, a little over a hundred years before Williams published his book, Charles Darwin published Origin of Species, in which natural selection is the linchpin of his theory of evolution. Natural selection for Darwin not only helped to explain the competitive climate of the living world but its luscious fecundity as well. Natural selection works like this: Let's say you [End Page 53] have a population of large beaked and small beaked birds. The environment in which the birds live provides them with an abundant and nutritious supply of both large and small seeds. Typically the small beaked birds eat the small seeds. The large beaked birds are capable of eating both small and large seeds. However, a blight occurs killing off all the small seed producing trees causing the food supply of the small beaked birds to diminish to virtually nil. Given that the small beaked birds are unable to feed on the continued supply of large seeds, they are selected out or eliminated from that environment: either they must seek out another environment, or they die. The large beaked birds, however, are in this case more adaptable to the environment because they can eat large seeds, survive, and pass on their largebeaked traits to the next generation. Darwin characterizes this process as "the struggle for life." He says: Owing to this struggle, variations, however slight and from what ever cause proceeding, if they be in any way profitable to the individuals of a species, in their infinitely complex relation to other organic beings and to their physical conditions of life, will tend to the preservation of such individuals, and will generally be inherited by the offspring. The offspring, also, will thus have a better chance of surviving, for, of the many individuals of any species which are periodically born, but a small number can survive. I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection, in order to mark its relation to man's power of selection. But the expression often used by Mr. Herbert Spencer of the Survival of the Fittest is more accurate, and is sometimes equally convenient.5Darwin sums up his discussion of natural selection by saying that the idea explains... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Journal of Aesthetic Education 38.2 (2004) 53-66 [Access article in PDF] Art Selection, or the Preservation of Artworks in the Struggle for Art Christopher Perricone The argument of George C. Williams's book Adaptation and Natural Selection is against what biologists call the group selectionist view — that individuals will act on behalf of their species, or at least on behalf of the group to which they (...) belong.1 Williams showed, and now most biologists agree, "no creature could ever evolve the ability to help its species at the expense of itself. Only when the two interests coincided would it act selflessly."2 According to Matt Ridley, Williams is one of the towering figures in contemporary biology. Williams helps us to understand better what natural selection is and consequently helps us to understand better our place in the world. Williams claims that when we are dealing with life, "we are forced to invoke natural selection to achieve a complete explanation of an observed system."3 Physics and chemistry alone are not sufficient to explain life. Williams gives the example of a falling apple. If one has to explain the trajectory of the apple, the principles of mechanics are sufficient for providing an adequate explanation of the phenomenon. If, however, we were asked how the apple acquired its various properties, and why it has these properties instead of others, we would need the theory of natural selection, at least by implication. Only thus could we explain why the apple has a waterproof wax on the outside...why it contains dormant embryos....We would find that an impressive list of structural details and processes of the apple can be understood as elements of a design for an efficient role in the propagation of the tree from which it came."4Of course, a little over a hundred years before Williams published his book, Charles Darwin published Origin of Species, in which natural selection is the linchpin of his theory of evolution. Natural selection for Darwin not only helped to explain the competitive climate of the living world but its luscious fecundity as well. Natural selection works like this: Let's say you [End Page 53] have a population of large beaked and small beaked birds. The environment in which the birds live provides them with an abundant and nutritious supply of both large and small seeds. Typically the small beaked birds eat the small seeds. The large beaked birds are capable of eating both small and large seeds. However, a blight occurs killing off all the small seed producing trees causing the food supply of the small beaked birds to diminish to virtually nil. Given that the small beaked birds are unable to feed on the continued supply of large seeds, they are selected out or eliminated from that environment: either they must seek out another environment, or they die. The large beaked birds, however, are in this case more adaptable to the environment because they can eat large seeds, survive, and pass on their largebeaked traits to the next generation. Darwin characterizes this process as "the struggle for life." He says: Owing to this struggle, variations, however slight and from what ever cause proceeding, if they be in any way profitable to the individuals of a species, in their infinitely complex relation to other organic beings and to their physical conditions of life, will tend to the preservation of such individuals, and will generally be inherited by the offspring. The offspring, also, will thus have a better chance of surviving, for, of the many individuals of any species which are periodically born, but a small number can survive. I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection, in order to mark its relation to man's power of selection. But the expression often used by Mr. Herbert Spencer of the Survival of the Fittest is more accurate, and is sometimes equally convenient.5Darwin sums up his discussion of natural selection by saying that the idea explains... (shrink)

The mechanisms of Darwinian theory applied at the cellular level can explain the embryogenesis of an organism. On the one hand, DNA is not the bearer or carrier of a program composed of rigid instructions, in which the adult organism is « written », in advance. It is a generator of diversity that functions in a probabilistic fashion and thus enables cells to change states without being guided by signals. On the other hand, the environment is not only that which (...) is external to the organism. It exists within the embryo inasmuch as it constitutes the micro-environment of the cell. It determines the concentration of metabolites to which the cell has access and which enable it to multiply. In a colony of cells there are numerous variations in the composition of this microenvironment. Cells exchange the products of their metabolism. They use what their neighbours provide them. By means of their probabilistic functioning, they adapt to changing life conditions by activating the necessary proteins, whence the cellular differentiation generating the tissue of which an adult being is composed. In this theory, the embryo is not the passive object subject to the cumulative determinisms of the genome and the environment. These are integrated into a single mechanism. The cell is the fundamental level which constructs the living being by an active process of Darwinian selection. By bringing together phylogeness and ontogenesis in one explanatory model, cellular Darwinism allows us to get rid of the old concepts of purposiveness and formal cause which genetics has rehabilitated in the new clothing of the « generic program ». (shrink)

Is it right to use pre-implantation genetic diagnosis to select an embryo free of the gene for early-onset Alzheimer’s disease?A 30 year old woman with the gene for early-onset Alzheimer’s disease, who seems certain to develop the disease by the time she is 40, has used IVF and preimplantation genetic diagnosis to select an embryo that is free of the mutant gene. The woman, a geneticist, has given birth to a mutation-free child. This marks the first time that (...) preimplantation genetic diagnosis has been used to “weed out” an embryo with the defect.1–3Early-onset Alzheimer’s is an inherited, incurable disease striking people …. (shrink)

The scope of embryo research in the UK has been expanded by the Human Fertilisation and Embryology Regulations 2001. Two advisory bodies—the Chief Medical Officer’s Expert Group and the House of Lords’ Select Committee—presented various arguments in favour of embryo research. One of these is the view that, just as lottery tickets have relatively little value before the draw because of the low probability of their being the winning ticket, early embryos have relatively little value because of the (...) presumed low probability that they will mature into more developed embryos. This argument from probability is questioned in this paper, as well as the contention that allowing embryo destruction is incompatible with the view that embryos have full moral status. Although I challenge Savulescu’s view that early embryos should be entered into a lottery in which they are subjected to the probability of being destroyed , a revised version of Thomson’s analogy of the famous violinist defies the view that the position that the embryo has full moral status is incompatible with qualified support for embryo destruction. (shrink)

ABSTRACT On 22 January 2001, the UK became the first country to approve of embryonic stem cell research by passing the Human Fertilisation (Research Purposes) Regulations 2001, which legislated new research purposes for which early embryos can be used, in addition to those approved by the Human Fertilisation and Embryology Act 1990. Legal advisory committees, most notably the Chief Medical Officer's Expert Group and the House of Lords’ Select Committee, have offered various reasons, which can also be found in the (...) ethics literature, to justify this change. Those examined here are the views that: 1. Early embryos lack relevant qualities (or ‘the argument from lack of qualities’) and 2. Early embryos only have a potentiality to become humans with moral status (or ‘the argument from potentiality’). The validity of these arguments is questioned and a case is made for egalitarian speciesism. Embryos have moral status (used here in the restricted sense of the status possessed by all members of the class of beings which deserve the greatest moral significance in equal measure). They have more value than the value that should be assigned to nonhuman beings from the start of fertilisation. Current UK legislation on embryo research is immoral. (shrink)

Ethical conflicts have always been connected with new techniques of reproductive medicine such as in-vitro fertilization. The fundamental question is: When does human life begin and from which stage of development should the embryo be protected? This question cannot be solved by scientific findings only. In prenatal ontogenesis there is no moment during the development from the fertilized oocyte to a human being which could be recognized as an orientation point for all ethical problems connected with the question of (...) the right to dispose of prenatal life (interruption of pregnancy, research on embryos). The protection of an individual human life must be valid for all in the same manner and from the very beginning on. It must not depend on value judgments or on stages of development, so-called grades of humanity, because these would then become selection criteria. Procreated life must have the right to be born. These were the essential ethical arguments which led to the German Embryo Protection Law. (shrink)

The dominant view in bioethics is that embryo selection is in general morally preferable to gene editing because the latter involves risks that are absent in the former. What is less widely appreci...

This paper examines the consistency of parent selection procedures, focusing on adoption and embryo donation. It outlines the current methods of selection and their disparities, and considers reasons for these disparities; namely, the intentionality of the parents, the gestational experience, and the technological imperative. This discussion is followed by an analysis of the ethical validity of these reasons, in terms of their consistency and how well they meet standards of equity and justice. The paper concludes that current (...) approaches to parent selection are unsystematic and inadequate, and discusses the implications of this assessment. (shrink)

The author draws on his own experience of helping to make and deliver public policy to indicate the wider context in which ethical decisions have to be made: the law, contested interpretations of the law which have to be settled in the courts, and wider political and economic factors. He argues that the concept of respect for the early embryo does have substance because of the strict regulatory regime of the Human Fertilisation and Embryology Authority (HFEA). He considers the (...) arguments that the early embryo ‘[e]njoys the full rights of the human being and should be accorded respect owed to a human being’. He concludes that these arguments are not finally convincing. He also looks at the moral status of the early embryo in Christian tradition and argues that perhaps from the fourth and certainly from the seventh century in the West until 1869, offences against the early embryo were regarded as less serious than offences against the embryo when developed further. For these reasons he concludes that there should be no absolute prohibition against research on an early embryo up to fourteen days. He also looks at recent cases involving pre-implantation diagnosis (PGD) and tissue typing with a view to obtaining matching tissue from an early embryo for a sibling suffering from a life-threatening disease. Although a distinction has been made between what might be licit in the case of a genetic disorder in the sibling but illicit if the disorder is not genetic, he argues that it could be in the best interests of the early embryo, the child that is to be, if in either case if it was selected with a view to matching the tissue of a sibling. (shrink)

Infertility is a huge problem nowadays, not only from the medical but also from the social point of view. A key step to improve treatment outcomes is the possibility of effective prediction of treatment result. In a situation when a phenomenon with more than 2 states needs to be explained, e.g. pregnancy, miscarriage, non-pregnancy, the use of multinomial logistic regression is a good solution. The aim of this paper is to select those features that have a significant impact on achieving (...) clinical pregnancy as well as those that determine the occurrence of spontaneous miscarriage. Two multi-factor models were obtained, used in predicting infertility treatment outcomes. One of the models enabled to conclude that the number of follicles and the percentage of retrieved mature oocytes have a significant impact when prediction of treatment outcome is made on the basis of information about oocytes. The other model, built on the basis of information about embryos, showed the significance of the number of fertilized oocytes, the percentage of at least 7-cell embryos on day 3, the percentage of blasts on day 5, and the day of transfer. (shrink)

In 2006 the Government issued a White Paper in which it proposed a ban on human-animal embryo research pending greater clarity on its potential. The Commons Select Committee on Science and Technology initiated an Inquiry and concluded that such research was necessary and should be permitted immediately. The Government agreed and this is reflected in revised legislation. The Government has issued guidelines on the gathering and use of scientific advice and evidence, designed to ensure that these are “credible, reliable (...) and objective.” This article tests the Committee’s approach in the light of its remit and these, and other, relevant guidelines and concludes that it failed to meet these standards. Rather, it effectively ceded to an interest group the regulation of its own activities. The article ends by suggesting alterations to the Committee’s remit and composition designed to ensure that the public interest is better protected in future. (shrink)

This review uses nutritional markers of normal and impaired development to address the question; what makes a viable mammalian preimplantation embryo? Resolution of this question is important to ensure the long‐term safety of embryo‐based biotechnologies in man and domestic animals, the optimisation of embryo production and culture conditions and the development of methods to select viable embryos for replacement. After considering the nutrition of embryos and somatic cells, and the phenomenon of caloric restriction, it is concluded that (...) preimplantation embryo survival is best served by a relatively low level of metabolism; a situation achieved by reducing the concentrations of nutrients in culture media and encouraging the use endogenous resources. BioEssays 24:845–849, 2002. © 2002 Wiley Periodicals, Inc. (shrink)