Genetic Determinism

Causation has multiple distinct meanings in genetics. One reason for this is meaning slippage between two concepts of the gene: Mendelian and molecular. Another reason is that a variety of genetic methods address different kinds of causal relationships. Some genetic studies address causes of traits in individuals, which can only be assessed when single genes follow predictable inheritance patterns that reliably cause a trait. A second sense concerns the causes of trait differences within a population. Whereas some single genes can (...) be said to cause population-level differences, most often these claims concern the effects of many genes. Polygenic traits can be understood using heritability estimates, which estimate the relative influences of genetic and environmental differences to trait differences within a population. Attempts to understand the molecular mechanisms underlying polygenic traits have been developed, although causal inference based on these results remains controversial. Genetic variation has also recently been leveraged as a randomizing factor to identify environmental causes of trait differences. This technique—Mendelian randomization—offers some solutions to traditional epidemiological challenges, although it is limited to the study of environments with known genetic influences. (shrink)

Although there is much discussion in scientific and law journals regarding direct-to-consumer genetic testing (DTCGT), there is a paucity of philosophical-ethical examination of how such services threaten to repeat the essentialist, racial-projects of the past. On the one hand, testing for ancestry can be cathartic: for those lacking familial history as to when and how they came to be where they are, DTCGT can offer powerful access to their lineage and identity-formation. On the other hand, DTCGT inevitably reinscribes problematic epistemologies (...) of race—even when the companies claim that their tests can be tools to combat white supremacy. Tracing the roots of biological essentialism back to Aristotle, through the invention of raza as cocreator of modernity, and up to critical race theories today, provides a strong foundation to examine the nascent race-thinking underlying DTCGT. Borrowing heavily from Paul Taylor and Charles Mills, but also enlisting scholars from other disciplines, such as Ifeoma Ajunwa (law), Alondra Nelson (sociology), and Troy Duster (genetics), provides the broad scope necessary for thoughtful, agile engagement of that which is ameliorative, unethical, and even dangerous—for all of us—in the age of 23andMe. (shrink)

Dies ist eine ausgezeichnete Überprüfung der Gen-/Umgebungsinteraktionen auf das Verhalten und ist, obwohl sie etwas veraltet ist, eine einfache und lohnende Lektüre. Sie beginnen mit Zwillingsstudien, die den überwältigenden Einfluss der Genetik auf das Verhalten zeigen. Sie stellen die immer bekannter werdenden Studien von Judith Harris fest, die die Fakten erweitern und zusammenfassen, dass die gemeinsame häusliche Umgebung fast keinen Einfluss auf das Verhalten hat und dass adoptierte Kinder so anders wachsen als ihre Stiefbrüder und -schwestern wie zufällig ausgewählte Menschen. (...) Ein grundlegender Punkt, den sie (und fast alle, die über Verhaltensgenetik diskutieren) nicht zur Kenntnis nehmen, ist, dass die Hunderte (Tausende je nach Standpunkt) menschlicher Verhaltensuniversalen, einschließlich aller Grundlagen unserer Persönlichkeiten, zu 100% von unseren Genen bestimmt werden, ohne Variation in normalen Werten. Jeder sieht einen Baum als Baum und nicht als Stein, sucht und isst Nahrung, wird wütend und eifersüchtig usw. Worüber sie hier also meistens sprechen, ist, wie viel Umwelt (Kultur) das Ausmaß beeinflussen kann, in dem verschiedene Merkmale gezeigt werden, und nicht ihr Aussehen. Schließlich diskutieren sie die Eugenik in der üblichen politisch korrekten Weise, ohne festzustellen, dass wir und alle Organismen die Produkte der Eugenik der Natur sind und dass Versuche, die natürliche Selektion mit Medizin, Landwirtschaft und Zivilisation als Ganzes zu besiegen, für jede Gesellschaft, die dies weiterhin tut,katastrophalsind. Bis zu 50 % aller Empfängnisse oder etwa 100 Millionen pro Jahr enden in einer frühen spontanen Abtreibung, fast alle ohne Dassmund die Mutter. Diese natürliche Keulung defekter Gene treibt die Evolution an, hält uns relativ genetisch gesund und macht die Gesellschaft möglich. Dysgenös ist ausreichend, um die Zivilisation zu zerstören, aber Überbevölkerung wirdd o eszuerst. Wer aus der modernen zweisystems-Sichteinen umfassenden, aktuellen Rahmen für menschliches Verhalten wünscht, kann mein Buch "The Logical Structure of Philosophy, Psychology, Mindand Language in Ludwig Wittgenstein and John Searle' 2nd ed (2019) konsultieren. Diejenigen,die sich für mehr meiner Schriften interessieren, können 'Talking Monkeys--Philosophie, Psychologie, Wissenschaft, Religion und Politik auf einem verdammten Planeten --Artikel und Rezensionen 2006-2017' 3rd ed (2019) und andere sehen. (shrink)

Il s’agit d’un excellent examen des interactions génétiques / environnement sur le comportement et, en dépit d’être un peu daté, est une lecture facile et utile. Ils commencent par des études jumelles qui montrent l’impact écrasant de la génétique sur le comportement. Ils notent les études de plus en plus connues de Judith Harris qui étendent et résument les faits que l’environnement familial partagé n’a presque aucun effet sur le comportement et que les enfants adoptés grandissent pour être aussi différents (...) de leurs demi-frères et soeurs que les personnes choisies au hasard. Un point fondamental qu’ils (et presque tous ceux qui discutent de la génétique comportementale) ne parviennent pas à noter est que les centaines (des milliers selon votre point de vue) des universels comportementaux humains, y compris toutes les bases de nos personnalités, sont 100% déterminés par nos gènes, sans aucune variation dans les normales. Tout le monde voit un arbre comme un arbre et non une pierre, cherche et mange de la nourriture, se met en colère et jaloux, etc. Donc, ce dont ils parlent surtout ici, c’est de la quantité d’environnement (culture) qui peut influer sur la mesure dans laquelle les divers traits sont montrés, plutôt que leur apparence. Enfin, ils discutent de l’eugénisme de la manière politiquement correcte habituelle, à défaut de noter que nous et tous les organismes sommes les produits de l’eugénisme de la nature et que les tentatives de vaincre la sélection naturelle avec la médecine, l’agriculture, et la civilisation dans son ensemble, sont désastreuses pour toute société qui persiste à le faire. Jusqu’à 50% de toutes les conceptions, soit environ 100 millions par an, se terminent par un avortement spontané précoce, presque tous sans que la mère soit au courant. Cet abattage naturel de gènes défectueux stimule l’évolution, nous maintient relativement génétiquement sains et rend la société possible. Dysgenics est suffisant pour détruire la civilisation, mais la surpopulation sera do ild’abord. Ceux qui souhaitent un cadre complet à jour pour le comportement humain de la vue moderne de deuxemssyst peuvent consulter mon livre 'The Logical Structure of Philosophy, Psychology, Mind and Language in Ludwig Wittgenstein et John Searle' 2nd ed (2019). Ceux qui s’intéressent à plus de mes écrits peuvent voir «Talking Monkeys --Philosophie, Psychologie, Science, Religion et Politique sur une planète condamnée --Articles et revues 2006-2017' 3rd ed (2019) et autres. (shrink)

これは、行動に関する遺伝子/環境相互作用の優れたレビューであり、少し日付が付いているにもかかわらず、簡単で価値のある読み取りです。彼らは遺伝学が行動に与える圧倒的な影響を示す双子の研究から始まります。 彼らは、家庭環境を共有することは行動にほとんど影響を及ぼさないという事実を拡張し要約し、養子が無作為に選ばれた人々と同じくらい義理の兄弟や姉妹と同じように成長するという事実を拡張し、要約するジュディス ・ハリスのますますよく知られた研究に注意してください。彼ら(そして行動遺伝学について議論するほぼすべての人)が注意できない基本的なポイントの1つは、私たちの性格のすべての基本を含む人間の行動普遍的な何 百人(あなたの視点に応じて数千人)が、正常にばらつきのない私たちの遺伝子によって100%決定されるということです。誰もが木を木として見て、石ではなく、食べ物を求めて食べ、怒りと嫉妬などを求めます。だか ら、彼らがここで主に話しているのは、環境(文化)が外見ではなく、様々な形質が示される程度にどれだけ影響を与えるかです。 最後に、彼らは、私たちとすべての生物が自然の優生学の産物であり、医学、農業、文明全体で自然選択を打ち負かそうとする試みは、これを続ける社会にとって悲惨なことに注意せず、通常の政治的に正しい方法で優生学 について議論しています。すべての概念の50%、または約1億/年は、母親が気づかずに、ほぼすべての早期自然流産に終わる。この欠陥遺伝子の自然なカリングは進化を促進し、私たちを比較的遺伝的に健全に保ち、社 会を可能にします。異性原性は文明を破壊するのに十分であるが、人口過剰は最初にそれをdする。 現代の2つのシス・エムスの見解から人間の行動のための包括的な最新の枠組みを望む人は、私の著書「ルートヴィヒ・ヴィトゲンシュタインとジョン・サールの2ndnd edの哲学、心理学、ミンと言語の論理的構造」を参照することができます。私の著作の多く興味がある人は、運命の惑星に関する「話す猿--哲学、心理学、科学、宗教、政治」を見ることができます - 記事とレビュー2006-2017' 3rded (2019) その他。 .

这是一个对行为上基因/环境相互作用的极好的回顾,尽管有点过时,但却是一个简单而值得阅读的。他们从双胞胎研究开始,这些研究显示了遗传学对行为的压倒性影响。他们注意到朱迪思·哈里斯越来越广为人知的研究,这 些研究扩展并总结了共享家庭环境对行为几乎没有影响的事实,领养的孩子长大后与选择的继兄弟姐妹一样不同。随机。一个基本点,他们(和几乎所有谁讨论行为遗传学)没有注意到的是,数百(取决于你的观点)人类行为普 遍性,包括我们个性的所有基本,是由我们的基因100%决定,与法线没有变化。每个人都把树看成一棵树,而不是一块石头,寻找和吃食物,生气和嫉妒等等。因此,他们主要讨论的是,环境(文化)能在多大程度上影响各 种特征的显示程度,而不是它们的外观。 最后,他们以通常的政治正确方式讨论优生学,没有注意到我们和所有生物体是自然优生学的产物,并且试图用医学、农业和整个文明来击败自然选择,灾难性的任何社会,坚持这样做。多达50%的所有受孕,或大约1亿/年 ,以早期自然流产结束,几乎所有的母亲都没有意识到。这种对缺陷基因的自然剔除推动了进化,使我们相对地保持遗传健康,并使社会成为可能。基因足以破坏文明,但人口过剩会先破坏文明。 那些希望从现代两个系统的观点来看为人类行为建立一个全面的最新框架的人,可以查阅我的书《路德维希的哲学、心理学、Min d和语言的逻辑结构》维特根斯坦和约翰·西尔的二等奖(2019年)。那些对我更多的作品感兴趣的人可能会看到《会说话的猴子——一个末日星球上的哲学、心理学、科学、宗教和政治——文章和评论2006-2017 年'3rd ed(2019)。.

Questa è un'eccellente revisione delle interazioni gene/ambiente sul comportamento e, nonostante sia un po' datata, è una lettura facile e utile. Iniziano con studi gemelli che mostrano l'impatto travolgente della genetica sul comportamento. Notano gli studi sempre più noti di Judith Harris che estendono e riassumono i fatti che l'ambiente domestico condiviso non ha quasi alcun effetto sul comportamento e che i bambini adottati crescono fino ad essere diversi dai loro fratellastri e sorelle come le persone scelte a caso. Un (...) punto fondamentale che loro (e quasi tutti coloro che discutono di genetica comportamentale) non riescono a notare è che le centinaia (migliaia a seconda del tuo punto di vista) degli universali comportamentali umani, comprese tutte le basi delle nostre personalità, sono determinate al 100% dai nostri geni, senza variazioni nella normalità. Tutti vedono un albero come un albero e non come una pietra, cercano e mangiano cibo, si arrabbiano e geloso ecc. Quindi, quello di cui stanno parlando per lo più qui è quanto ambiente (cultura) può influenzare il grado in cui vengono mostrati i vari tratti, piuttosto che il loro aspetto. Infine, discutono di eugenetica nel solito modo politicamente corretto, non riuscendo a notare che noi e tutti gli organismi siamo i prodotti dell'eugenetica della natura e che i tentativi di sconfiggere la selezione naturale con la medicina, l'agricoltura e la civiltà nel suo complesso sono disastrosi per qualsiasi società che persiste nel farlo. Fino al 50% di tutte le concezioni, o circa 100 milioni/anno, finiscono in un aborto spontaneo precoce, quasi tutti senza che la madre ne sia a conoscenza. Questo abbattimento naturale dei geni difettosi guida l'evoluzione, ci mantiene relativamente geneticamente sani e rende possibile la società. La disgenica è sufficiente a distruggere la civiltà, ma la sovrappopolazione sarà doprima. Coloro che desiderano un quadro aggiornato completo per il comportamento umano dalla moderna vista a due systems possono consultare il mio libro 'La struttura logica dellafilosofia, psicologia, Mind e il linguaggio in Ludwig Wittgenstein e John Searle' 2nd ed (2019). Coloro che sono interessati a più dei miei scritti possono vedere 'TalkingMonkeys--Filosofia, Psicologia, Scienza, Religione e Politica su un Pianeta Condannato--Articoli e Recensioni 2006-2017' 3rd ed (2019). (shrink)

-/- Esta es una excelente revisión de las interacciones gen/ambiente en el comportamiento y, a pesar de ser un poco anticuado, es una lectura fácil y valiosa. Empiezan con estudios gemelos que muestran el impacto abrumador de la genética en el comportamiento. Señalan los estudios cada vez más conocidos de Judith Harris, que amplían y resumen los hechos de que el ambiente doméstico compartido casi no tiene efecto sobre el comportamiento y que los niños adoptados crecen para ser tan diferentes (...) de sus hermanastros y hermanas como las personas elegidas al azar. Un punto básico que ellos (y casi todos los que discuten sobre la genética conductual) no se dan cuenta es que los cientos (miles dependiendo de su punto de vista) de los universales de comportamiento humano, incluyendo todos los fundamentos de nuestras personalidades, son 100% determinado por nuestros genes, con no hay variación en las normales. Todo el mundo ve un árbol como un árbol y no una piedra, busca y come comida, se enfada y celosa, etc. Por lo tanto, lo que están hablando sobre todo aquí es cuánto ambiente (cultura) puede afectar al grado en que se muestran varios rasgos, en lugar de su apariencia. -/- Por último, discuten la eugenesia en la costumbre políticamente correcta, al no notar que nosotros y todos los organismos somos los productos de la eugenesia de la naturaleza y que los intentos de derrotar la selección natural con la medicina, la agricultura y la civilización en su conjunto, son desastroso para cualquier sociedad que persiste en hacer esto. Tanto como el 50% de todas las concepciones, o unos 100 millones/año, terminan en abortos espontáneos tempranos, casi todos sin que la madre sea consciente. Este sacrificio natural de genes defectuosos impulsa la evolución, nos mantiene relativamente genéticamente sólidas y hace posible la sociedad. La disgenesia es suficiente para destruir la civilización pero sobrepoblación se do primero. -/- Aquellos que deseen un marco completo hasta la fecha para el comportamiento humano de la moderna Dos Sistemas Punto de Vista puede consultar mi libro 'La estructura lógica de la filosofía, la psicología, la mente y lenguaje En Ludwig Wittgenstein y John Searle ' 2Nd Ed (2019). Los interesados en más de mis escritos pueden ver 'Monos parlantes--filosofía, psicología, ciencia, religión y política en un planeta condenado--artículos y reseñas 2006-2017' 3Rd Ed (2019) y otras. (shrink)

Determinism from the 1st and 3rd person perspective as well as the universal point of reference aee dealt with. This is to show the absence of free will in the last perspective and the illusion of it when seen from the first two perspectives. ‘Free’ choice is dealt with as well as the absence of free will and the consequences of determinism for law and court judgements are explored. So, what if any, is the place and the role of God (...) in all this? Did s/he create determinism and the potential for or any semblance of choice and free will? Or is the existence of God.. (shrink)

Nowak is (or was) a respected Harvard professor of mathematical biology with numerous well regarded publications. Sadly, he has chosen to launch an arrogant attack on science motivated by religious fervor. His recent actions show the evil consequences when universities accept money from religious groups, science journals are so awed by big names that they avoid proper peer review, and egos are permitted to get out of control. Most of this book is good, but it repeats the utterly misconceived attacks (...) on inclusive fitness in favor of group selection which he and his much more famous Harvard colleague E.O.Wilson have been making the last 5 years, so it is on that chapter of the book that I will concentrate. This takes us into the nature of evolution, the basics of scientific methodology, how math relates to science, what constitutes a law or a theory, and what attitudes to religion and generosity are appropriate as we inexorably approach the collapse of industrial civilization. -/- Those wishing a comprehensive up to date framework for human behavior from the modern two systems view may consult my book ‘The Logical Structure of Philosophy, Psychology, Mind and Language in Ludwig Wittgenstein and John Searle’ 2nd ed (2019). Those interested in more of my writings may see ‘Talking Monkeys--Philosophy, Psychology, Science, Religion and Politics on a Doomed Planet--Articles and Reviews 2006-2019 3rd ed (2019), The Logical Structure of Human Behavior (2019), and Suicidal Utopian Delusions in the 21st Century 4th ed (2019). (shrink)

Pope Francis takes the Big Bang as supplying empirical evidence for God’s existence, going so far as to credit God’s will as the force behind natural selection. So if natural selection is the emanation of divine will, then so too is what Richard Dawkins calls the “selfish gene” underlying it. The trouble is that the natural forces of self-interest may win out over the better angels of our nature, spelling disaster for the human species—and the planet sustaining it. For the (...) drive of individual self-interest is the main fuel of capitalism, which has become the dominant global economic paradigm. And this unbridled self-interest is arguably most responsible for widespread environmental degradation. Therefore, if humanity should ultimately expire as a direct result of its evolutionary adaptations, it won’t exactly be a ringing endorsement of the architect of life, the universe, and everything. (shrink)

Personalized genomics companies (PG; also called ‘direct-to-consumer genetics’) are businesses marketing genetic testing to consumers over the Internet. While much has been written about these new businesses, little attention has been given to their roles in science communication. This paper provides an analysis of the gene concept presented to customers and the relation between the information given and the science behind PG. Two quite different gene concepts are present in company rhetoric, but only one features in the science. To explain (...) this, we must appreciate the delicate tension between PG, academic science, public expectation, and market forces. (shrink)

Freedom is first apprehended as the pursuit of an activity which implies the choice to defend a thesis among other possible ones. This translation of the problem of freedom in an articulate language presupposes a complex nervous system and sensory apparatuses which we take for granted. In this study, I try to explore the undergrounds of the problem of freedom along with the suggestion that the notion of coding could enable one to bridge nature and the mind. When organisms invent, (...) are they doing it in a spontaneous manner, inscribing in their hereditary and mnemonic instructions a stochastic contrivance of random accidents, or are they attempting to select among a limited number of schemes endowed with some optimality of functioning? If we consider them as submitted to physical forces, it is to the extent that we make them part of a strategy to extend the "laws" of a nature understood to respond passively. I suggest in this study that the epistemological understanding must regionalize itself and admit a hierarchy of dispositions in relation to the phenomenon of selection. I end by suggesting the pursuit of affirmation instead of negation, as this alone contains the requirement of integration to the knowing subject as well as the form in its act of understanding, without giving it a spontaneist position. (shrink)

This article illustrates in which sense genetic determinism is still part of the contemporary interactionist consensus in medicine. Three dimensions of this consensus are discussed: kinds of causes, a continuum of traits ranging from monogenetic diseases to car accidents, and different kinds of determination due to different norms of reaction. On this basis, this article explicates in which sense the interactionist consensus presupposes the innate?acquired distinction. After a descriptive Part 1, Part 2 reviews why the innate?acquired distinction is under attack (...) in contemporary philosophy of biology. Three arguments are then presented to provide a limited and pragmatic defense of the distinction: an epistemic, a conceptual, and a historical argument. If interpreted in a certain manner, and if the pragmatic goals of prevention and treatment (ideally specifying what medicine and health care is all about) are taken into account, then the innate?acquired distinction can be a useful epistemic tool. It can help, first, to understand that genetic determination does not mean fatalism, and, second, to maintain a system of checks and balances in the continuing nature?nurture debates. (shrink)

This article illustrates in which sense genetic determinism is still part of the contemporary interactionist consensus in medicine. Three dimensions of this consensus are discussed: kinds of causes, a continuum of traits ranging from monogenetic diseases to car accidents, and different kinds of determination due to different norms of reaction. On this basis, this article explicates in which sense the interactionist consensus presupposes the innate?acquired distinction. After a descriptive Part 1, Part 2 reviews why the innate?acquired distinction is under attack (...) in contemporary philosophy of biology. Three arguments are then presented to provide a limited and pragmatic defense of the distinction: an epistemic, a conceptual, and a historical argument. If interpreted in a certain manner, and if the pragmatic goals of prevention and treatment are taken into account, then the innate?acquired distinction can be a useful epistemic tool. It can help, first, to understand that genetic determination does not mean fatalism, and, second, to maintain a system of checks and balances in the continuing nature?nurture debates. (shrink)

Although biologists and philosophers of science generally agree that genes cannot determine the forms of biological and psychological traits, students, journalists, politicians, and other members of the general public nonetheless continue to embrace genetic determinism. This article identifies some of the concerns typically raised by individuals when they first encounter the systems perspective that biologists and philosophers of science now favor over genetic determinism, and uses arguments informed by that perspective to address those concerns. No definitive statements can yet be (...) made about why genetic determinism has proven so resilient in the face of empirical evidence pointing up its deficiencies, but conveying the essential interdependence of 'nature' and 'nurture' to the general public will likely require deployment of the arguments that systems theorists ordinarily use to reject genetic determinism. In addition, the elaboration of new metaphors that focus attention on the dynamic nature of trait construction will likely prove valuable, because re-conceptualizing notions like 'genes' and 'nature' will probably be one of the most effective ways to help students and the general public abandon the genetic determinism that biologists now recognize as indefensible. (shrink)

Genetic testing can not only provide information about diseases but also their prevalence in ethnic, gender, or other vulnerable populations. While offering the promise of significant therapeutic benefits and serving to highlight our commonality, genetic information also raises a number of sensitive human rights issues touching on identity and the perception thereof, as well as the possibility of discrimination and social stigma. It stands to reason that the results of individual screenings could haplessly be used to make general assumptions about (...) entire ethnic or gender groups. In this manner, genetic information can directly influence identity by impacting and perhaps even reframing conceptions of group rights and dimensions of self-identification, thus importing constitutional scrutiny on questions of dignity and discrimination in particular. Is there a risk of collective stigmatization deriving from discrete testing of self-identified individuals? Would such stigmatization impinge on individual dignity by the exogenous imposition of ethnic or gender/sexual identity? If so, what norms can most adequately respond if and when individual and group interests diverge? These questions are examined from a comparative perspective. (shrink)

Jaegwon Kim’s exclusion argument is a general ontological argument, applicable to any properties deemed supervenient on a microproperty basis, including biological properties. It implies that the causal power of any higher-level property must be reducible to the subset of the causal powers of its lower-level properties. Moreover, as Kim’s recent version of the argument indicates, a higher-level property can be causally efficient only to the extent of the efficiency of its micro-basis. In response, I argue that the ontology that aims (...) to capture experimentally based explanations of metabolic control systems and morphogenetic systems must involve causally relevant contextual properties. Such an ontology challenges the exclusiveness of micro-based causal efficiency that grounds Kim’s reductionism, since configurations themselves are inherently causally efficient constituents. I anticipate and respond to the reductionist’s objection that the nonreductionist ontology’s account of causes and inter-level causal relations is incoherent. I also argue that such an ontology is not open to Kim’s overdetermination objection. (shrink)

Genetic determinism is the idea that many significant human characteristics are rendered inevitable by the presence of certain genes. The psychologist Susan Oyama has famously compared arguing against genetic determinism to battling the undead. Oyama suggests that genetic determinism is inherent in the way we currently represent genes and what genes do. As long as genes are represented as containing information about how the organism will develop, they will continue to be regarded as determining causes no matter how much evidence (...) exists to the contrary. Philip Kitcher has strongly disputed Oyama’s diagnosis, arguing that the conventional ‘interactionist’ perspective on development is the correct framework for understanding the role of the genes in development. While acknowledging the legitimacy of many of Kitcher’s observations, I believe that Oyama’s view is substantially correct. In this paper I provide several lines of support for support the Oyama diagnosis. (shrink)

Genetic determinism labels the morally problematical claim that some socially significant traits, traits we care about, such as sexual orientation, gender roles, violence, alcoholism, mental illness, intelligence, are largely the results of the operation of genes and not much alterable by environment, learning or other human intervention. Genetic determinism does not require that genes literally fix these socially significant traits, but rather that they constrain them within narrow channels beyond human intervention. In this essay we analyze genetic determinism in light (...) of what is now known about the inborn error of metabolism phenylketonuria , which has for so long been the poster child ‘simple’ argument in favor of some form of genetic determinism. We demonstrate that this case proves the exact opposite of what it has been proposed to support and provides a strong refutation of genetic determinism in all its guises. (shrink)

Scientific knowledge of how genes work is giving human beings unprecedented power to shape future human lives, for better or for worse. People involved in government, business and science are facing new questions related to the application of genetic technologies to human beings. Our technical knowledge is growing fast, but does our moral wisdom grow at the same rate?

It is argued here that bioethicists might inadvertently be promoting genetic determinism: the idea that genes alone determine human traits and behaviours. Discussions about genetic testing are used to exemplify how they might be doing so. Quite often bioethicists use clinical cases to support particular moral obligations or rights as if these cases were representative of the kind of information we can acquire about human diseases through genetic testing, when they are not. On other occasions, the clinical cases are presented (...) in simplistic ways that portray genetic testing as yielding information more accurate than it actually is. It is concluded that, because of the problematic implications that the ideology of genetic determinism might have for individuals’ wellbeing and for our public policies, bioethicists should be careful to present these issues in ways that do not promote questionable ideas about the causal role of genes in human diseases and behaviours. (shrink)

Problems of sustainability and survivability are best met not with moralizing but with policies that take advantage of our increasingly understood evolved human psychology. This knowledge helps us understand why our problems recur, and why we need not expect them to have permanent solutions. What is needed is an evolutionary praxis. It is possible, for example, to create policies that work around our tendencies to hierarchize and to form into ethnocentric and mutually hostile groups. Although in many ways there may (...) be a mismatch between our evolved human nature and contemporary society, the fact that it is we who construct our environments must reduce the extent of mismatch. (shrink)

The aim of this paper is to show that critics of biological explanations of human nature may be granting too much to those who propose such explanations when they argue that the truth of genetic determinism implies an end to critical evaluation and reform of our social institutions. This is the case because when we argue that biological determinism exempts us from social critique we are erroneously presupposing that our social values, practices, and institutions have nothing to do with what (...) makes biological explanations troublesome. My argument is that what constitutes a problem for those who are concerned with social justice is not the fact that particular behaviours may be genetically determined, but the fact that our value system and social institutions create the conditions that make such behaviours problematic. Thus, I will argue that even if genetic determinism were correct, the requirement of assessing and transforming our social practices and institutions would be far from superfluous. Biology is rarely destiny for human beings and the institutions they create. (shrink)

Lifelines mounts a vigorous attack on sociobiology on the utterly mistaken grounds that sociobiologists believe that genes single-handedly determine social behavior. The many previously published rebuttals to this pernicious criticism are conveniently ignored by the author.

Metabolic systems are complicated and contain very large numbers of interacting reactions and many internal regulatory mechanisms. This does not prevent the genetic composition of an organism from influencing its behavior, however, nor does it preclude the possibility that some aspects of its behavior may be amenable to simple explanations.

I was led to this clarificatory job initially by some puzzlement from a philosopher's standpoint about just why free will questions should come up particularly in connection with the genome project, as opposed to the many other scientific research programs that presuppose determinism. The philosophic concept of determinism involves explanation of all events, including human action, by prior causal factors--so that whether or not human behavior has a genetic basis, it ultimately gets traced back to _something_ true of the world (...) before our birth. The philosophic problem of free will and determinism arises because this seems to undercut moral responsibility: How can we reasonably be held responsible for something whose causes we couldn't control? (shrink)