The idea that a world in which everyone was born “perfect” would be a world in which something valuable was missing often comes up in debates about the ethics of technologies of prenatal testing and preimplantation genetic diagnosis . This thought plays an important role in the “disability critique” of prenatal testing. However, the idea that human genetic variation is an important good with significant benefits for society at large is also embraced by a wide range of figures (...) writing in the bioethics literature, including some who are notoriously hostile to the idea that we should not select against disability. By developing a number of thought experiments wherein we are to contemplate increasing genetic diversity from a lower baseline in order to secure this value, I argue that this powerful intuition is more problematic than is generally recognized, especially where the price of diversity is the well-being of particular individuals. (shrink)

In popular articles that play down the genetical differences among human populations, it is often stated that about 85% of the total genetical variation is due to individual differences within populations and only 15% to differences between populations or ethnic groups. It has therefore been proposed that the division of Homo sapiens into these groups is not justified by the genetic data. This conclusion, due to R.C. Lewontin in 1972, is unwarranted because the argument ignores the fact that most (...) of the information that distinguishes populations is hidden in the correlation structure of the data and not simply in the variation of the individual factors. The underlying logic, which was discussed in the early years of the last century, is here discussed using a simple genetical example. (shrink)

The human gene pool displays exuberant genetic variation; this is normal for a sexual species. Even small isolated populations contain a large percentage of the total variability, emphasizing the basic genetic unity of our species. As modern man spread across the world from its African source, the genetic basis for man''s unique mental acuity was retained everywhere. Nevertheless, some geographical genetic variation such as skin color, stature and physiognomy was established. These changes were biologically relatively insignificant. (...) Most of the genetic load in the genome has been carried throughout the history of the species. There is little hope of purging all of these harmful genes; we must accept them and continue to treat their syndromes medically. All populations carry extensive genetic variation due to genes that encode variations in quantitative traits. Of greatest importance among these is ubiquitous polygenic variability in brain function and intelligence. Mental acuity is what sets us apart from the rest of the biological world. Throughout our history, genetic recombination among the many genes involved in brain function has occurred. This has provided a genetic basis for the action of natural selection that favors intelligence in meeting the demands of the environment. As environments change in the future, this type of genetic variability will continue to be a crucial resource. (shrink)

Rice crop diversity hasdecreased dramatically in the recent past.Understanding the causes that underlie theevident genetic erosion is critical for thefood security of subsistence rice farmers andbiodiversity. Our study shows that farmers inthe northeastern Philippines had a markedreduction in rice diversity from 1996 to 1998.The ultimate causes were a drought resultingfrom the El Niño phenomenon in 1997 andflooding due to two successive typhoons in1998. The proximate causes, however, includedlocal water control factors, limitations in thehousehold and village-level seedinfrastructure, farm (...) location in relation tothe goods and services necessary to obtainseeds, policies and programs of the Departmentof Agriculture, and the characteristics of therice varieties themselves. The implications ofour study are that genetic erosion is notalways the result of purposeful acts by farmersnor is it necessarily gradual. Improvingon-farm seed technology will stabilize the seedproduction, distribution, and use system andthereby enhance household food security.Ultimately, rice diversity will be improvedonly if diversity is a safe and viable optionfor farmers. Therefore, public policy thatsupports farmers who maintain a diverse set ofcultivars is critical for any on-farmconservation strategy. (shrink)

Recent research into human origins has largely focused on deducing past events and processes from current patterns of genetic variation. Some human genes possess unexpectedly low diversity, seemingly resulting from events of the late Pleistocene. Such anomalies have previously been ascribed to population bottlenecks or selection on genes. For four species of matrilineal whale, evidence suggests that cultural evolution may have reduced the diversity of genes which have similar transmission characteristics to selective cultural traits, through a process (...) called cultural hitchhiking. Cultural evolution is characteristic of human societies and so should be considered as a potential determinant of human genetic diversity. A stochastic simulation of gene and cultural dynamics in an array of hunter-gatherer tribes shows that cultural selection has the potential to severely reduce genetic diversity if: inter-tribe gene flows are reasonably low (<~0.6-15 genes/tribe/generation); cultural evolution changes fitness by >~0.3-3%/generation; and fitness is changed more by cultural innovation within a tribe than cultural assimilation from neighboring tribes. Thus cultural hitchhiking may explain low diversity and short coalescence times in mitochondrial and, especially, Y-linked human genes. (shrink)

Recent research on genetic and biological diversity suggests that they underlie, and are the source of renewable resources--which are themselves more fundamental than non-renewable resources. If this is the case, then our understandings of the "limits to growth" debate will need modification and current approaches to development--in both the industrial countries and in the Third World--will need reconceptualization. A major part of this will involve a reversal of roles and priorities for agricultural and industrial development. Also, more sustainable/regenerative (...) types of agriculture and food systems will need to be developed. Current explorations along these lines are briefly reviewed. Finally, the links between this and the wider need to develop more sustainable societies are examined. (shrink)

The rapidly changing field of genetics affects society through advances in health-care and through implications of genetic research. This study addresses the impacts of new genetic discoveries and technologies on different segments of today's society. The book begins with a chapter on genetic complexity, and subsequent chapters discuss moral and ethical questions arising from today's genetics from the perspectives of health care professionals, the media, the general public, special interest groups and commercial interests.

Recent data show that catastrophic events during one cell cycle can cause massive genome damage producing viable clones with unstable genomes. This is in contrast with the traditional view that tumorigenesis requires a long‐term process in which mutations gradually accumulate over decades. These sudden events are likely to result in a large increase in genomic diversity within a relatively short time, providing the opportunity for selective advantages to be gained by a subset of cells within a population. This (...) class='Hi'>genetic diversity amplification, arising from a single aberrant cell cycle, may drive a population conversion from benign to malignant. However, there is likely a period of relative genome stability during the clonal expansion of tumors – this may provide an opportunity for therapeutic intervention, especially if mechanisms that limit tolerance of aneuploidy are exploited. (shrink)

This article explores human genetic diversity research east of what was the iron curtain. It follows the technique of “genogeographic mapping” back to its early Soviet origins and up to the post-Soviet era. Bringing together the history of genogeographic mapping and genealogies of “nationality” and “race” in the USSR, I discuss how populations and belonging were enacted in late Soviet biological anthropology and human genetics. While genogeography had originally been developed within the early Soviet livestock economy, anthropologists, public (...) health scientists, and medical geneticists reanimated the technique in the late 1960s after the end of the Lysenko era and its ban on classical genetics. In the 1970s, population geneticists pursued a project to compile all genetic data on the USSR population, resulting in a “genogeographic atlas,” consisting of series of tables as well as maps projecting genetic markers onto geographic grids. Following the post-Soviet trajectories of these maps, I examine the ways in which human genetic diversity studies realign with renegotiations of difference in today’s Russian Federation. The exploration of the Soviet case of human genetic diversity research contributes to our understanding of the varied ways in which racializing discourses were entangled in the project of modernization. (shrink)

The genetic diversity argument (GDA) is one of the most commonly voiced objections to advances in reproductive and genetic technologies. According to the argument, scientific and technological developments in the realm of genetics and human reproduction will lead to lower genetic diversity, which will threaten the health and survivability of the human population. This discussion explicates and analyzes the GDA and challenges its empirical assumptions. It also discusses the possible significance of the GDA in our (...) overall thinking about genetics and human reproduction and examines two proposals for preserving "useful" genes. (shrink)

The seed system is a major component of traditional management of crop genetic diversity in developing countries. Seed flows are an important part of this system. They have been poorly studied for minor Andean crops, especially those that are propagated vegetatively. We examine the seed exchanges of Oxalis tuberosa Mol., a vegetatively propagated crop capable of sexual reproduction. We studied the seed exchanges of four rural communities in Candelaria district at the international and local levels, emphasizing the spread (...) of new sexually-produced genotypes through these exchanges. Interviews with 44 farmers generated socioeconomic, agronomic, crop diversity and seed exchange information, and data on the potential incorporation of new sexually-produced genotypes in the crop germplasm. We interviewed merchants to evaluate the input and output of genetic diversity in the communities studied. Results showed a positive effect of the farmers’ wealth on the diversity cultivated and on seed exchanges. Most seed exchanges occurred at market, creating a distinction between cash and self-consumption landraces. Cash landraces were intensively exchanged; self-consumption landraces were isolated at the farmer level and prone to genetic drift and complete loss. Merchants exported seeds of cash landraces across Bolivia and into Peru and Argentina. New sexually produced genotypes are less incorporated into cash landraces than in self-consumed landraces. However, new genotypes incorporated into cash landraces are diffused faster and better, being more intensively exchanged. We propose conservation strategies that can be applied to other vegetatively propagated and minor Andean crops. (shrink)

This paper explores the historical and social context of population genetic research conducted in India by focusing on a study by Reich et al which aimed to reconstruct Indian population history. The paper addresses two themes. First, it considers the agendas and modes of thinking about Indian populations and the caste system on which this study appears to be based. Second, it reflects on the medical implications of this study as they were presented in Reich et al's findings. I (...) suggest that while genetic mapping of Indian populations appears to have inherited many of the problems characteristic of population genetic research conducted in the USA and globally, the specificity of this research in India involves a peculiar interplay of the postcolonial pursuit of genomic sovereignty, desire by the Indian state to become a player in the global realm of biotechnology, and age-old discourses naturalising caste and regional differences. My argument is that, although the study has offered conceptual space for a wide range of interpretations, it has a strong potential not just for naturalising caste and regional differences in India, but also for pathologising them without necessarily bringing tangible healthcare benefits in the foreseeable future. (shrink)

The conservation of rice plant genetic diversity is particularly important for resource-poor farmers in economically marginal areas of the Philippines. This paper discusses the state of rice plant genetic diversity in the Philippines and the reasons behind the decrease in diversity witnessed over the last 30 years. A case study describes the in situ management of rice plant genetic diversity by resource-poor farmers from the Philippine island of Bohol, throughout the traditional, green revolution, (...) and post-green revolution periods. This analysis demonstrates that farmers tend to favor genetically heterogeneous varieties that adapt to varied environments. The case study also reviews an NGO-sponsored agricultural biodiversity project that demonstrates that rice plant genetic diversity can be increased by empowering farmers – providing them with access to varieties, knowledge of varietal trials, varietal selection, and varietal breeding, as well as increasing the linkages they have with other farmers and institutions. (shrink)

This article is essentially theoretical and is focused on the allocative function of the legal systems to attract/reject different capitals according to their procedures to shape norms and laws. This function of the legal systems is pivotal in our times as humankind is facing a systemic and evolutionary bifurcation between the heideggerian Gegnet of a strategic, high speed convergence (i.e., Singularity) among robotics, informatics, nanotechnologies, and genetics (RINGs)?which will reshape human life in terms of its life quality styles and standards (...) especially regarding health and environment matters, and the so called Neofeudal Scenario (NS) supported by those for whom the Industrial Model failed and the only way to save humankind and its environment would be a kind return to a Medieval life style based on a slow pace of life and austerity. This article provides an overview of the most important and recent international references regarding the two alternatives of bifurcation and describes a potential paradigm shift inside the systemic approach to reframe the conceptual map of global change through a systemic epistemology of the sociology of law. (shrink)

Slovene agriculture is going throughdrastic changes. Most of the land is stillowned by small farmers. The production isoriented to the market and is based on modernWestern technology. It is associated withincreasing pollution and is becoming a seriousthreat to biodiversity. Many of the wild plantsare endangered due to genetic erosion withinspecies. The traditional crops and varietiesare being replaced by imported materials andthe use of chemicals has been increasing. Manyof the traditional varieties have beenneglected and/or lost. The existing germplasmcollections are incomplete (...) and frequently donot include traditional varieties. There areonly a few breeding organizations with limitedcapacities and collections. The legislation isnot efficient enough to protect the environmentand biotic diversity. Schools, media,religious, sport, tourist, and otherorganizations should be more active inpromoting the respect for biodiversity. (shrink)

Building on the evidence from the impact of hybrid technology on varietal diversity loss, this paper explores ex ante the possible effects of introduction of Bt eggplant on on-farm varietal diversity of eggplant. The public–private partnership involved in the development and introduction of Bt eggplant provides a great opportunity to develop locally-adapted Bt open-pollinated varieties (OPVs) instead of having a limited number of generic hybrid varieties. The study shows that introduction of multiple Bt OPVs by public institutions will (...) reduce the rate of replacement of OPVs by hybrids and thus help in conserving varietal diversity. However, the cost of developing multiple Bt OPVs is high; hence policy makers need to look at alternative measures to maintain the varietal diversity of crops such as eggplant in its centers of diversity. (shrink)

Human fibroblasts express five tropomyosin‐like proteins, three of which have been shown to be structurally related to each other and to tropomyoins from muscle sources. These cytoskeletal tropomyosins are transcribed from three separate, non‐overlapping structural genes. However, each of these structural genes can also produce additional tropomyosin isoforms by a tissue‐specific alternative mRNA splicing mechanism.

The professional and institutional responsibility for handling genetic knowledge is well discussed; less attention has been paid to how lay people and particularly people who are affected by genetic diseases perceive and frame such responsibilities. In this exploratory study we qualitatively examine the attitudes of lay people, patients and relatives of patients in Germany and Israel towards genetic testing. These attitudes are further examined in the national context of Germany and Israel, which represent opposite regulatory approaches and (...) bioethical debates concerning genetic testing. Three major themes of responsibility emerged from the inter-group and cross-cultural comparison: self-responsibility, responsibility for kin, and responsibility of society towards its members. National contrast was apparent in the moral reasoning of lay respondents concerning, for example, the right not to know versus the duty to know (self-responsibility) and the moral conflict concerning informing kin versus the moral duty to inform (responsibility for kin). Attitudes of respondents affected by genetic diseases were, however, rather similar in both countries. We conclude by discussing how moral discourses of responsibility are embedded within cultural (national, religious) as well as phenomenological (being affected) narratives, and the role of public engagement in bioethical discourse. (shrink)

The prospect of germ-line genetic engineering, the ability to engineer genetic changes that can be passed on to subsequent generations, raises a wide range of moral and public policy questions. One of the most provocative questions is, simply put: Are there moral reasons that can be articulated in general secular terms for accepting human nature as we find it? Or, at least in terms of general secular moral restraints, may we reshape human nature better to meet our own (...) interests, as we define them? This question in turn raises the further question of whether human nature as it now exists has a moral standing akin to sacredness that can be understood in nonreligious terms. This essay will take as a given that it is not possible to show in general secular moral terms that human nature has a sanctity or special moral standing that should guide secular health-care policy. In addition, as this essay shows, it is not possible through appeals to considerations of authorizing consent or beneficence toward others to remedy this failure to establish a sanctity or special moral standing for human nature. Absent a religious or culturally normative understanding of human nature and given the availability of germline genetic engineering, there is a plurality of possibilities for refashioning our nature. The unavailability of substantive secular moral constraints on germ-line genetic engineering discloses a secularly licit plurality of possibilities for human nature. The likelihood that we will be able to refashion our human nature reveals how few general secular moral constraints there are to guide us. Paradoxically, the more we are able to reengineer our human nature, the less guidance is available. The plurality of possible conceptions of human well-being that can be pursued through germ-line genetic engineering challenges our self-understanding as humans. Given human freedom, and in the absence of taken-for-granted religious or cultural moral constraints, the likelihood of germ-line genetic engineering opens the possibility of human nature in the plural. (shrink)

To understand the public opinion concerning the genethics in culturally different populations, we conducted two focus groups in Japan, with one focus group each in China and Panama between April 2008 and August 2009. Generally, the participants in Japan were more cautious to disclose their personal thinking in a clear manner. Most participants in China and Panama hoped to have children free from any genetic disease if at all possible. The major difference between China and Panama seems to be (...) whether or not they will accept the issue of genetic abortion. Compared to China and Panama, fewer participants accepted a reprogenetics procedure in Japan. ―A goal of genetic counseling is to reduce the number of patients of genetic disease‖ is supported to a greater degree in China and Panama than in Japan. Most participants in China as well as Panama, and fewer participants in Japan accepted the concept of sharing genetic information with relatives, even though it is useful for preventing a possible genetic risk. The difference of the answers for the questions is depending on the cultural and value diversity in each country, while some of them are related into a paucity of knowing the principle of biogenetics. Education as to medical genetics and the principle of bioethics is most important to make genetics more accessible to the general public. (shrink)

Behavior genetics often emphasizes methods over the underlying quality of the psychological information to which the methods are applied. A core aspect of this quality is the demographic diversity of the samples. Building causal genetic models based only on European-ancestry samples compromises their generalizability. Behavior genetics researchers must spend additional time and resources diversifying their samples before emphasizing causation.

Recombinant DNA technology will soon allow physicians an opportunity to carry out both somatic cell- and Germ-Line gene therapy. While somatic cell gene therapy raises no new ethical problems, gene therapy of gametes, fertilized eggs or early embryos does raise several novel concerns. The first issue discussed here relates to making a distinction between negative and positive eugenics; the second issue deals with the evolutionary consequences of lost genetic diversity. In distinguishing between positive and negative eugenics, the concept (...) of malady is applied as a definitional criterion for identifying genetic disorders that could qualify for Germ-Line therapy. Because gene replacement techniques are currently unavailable for humans, and because even if they were possible the number of people involved would be quite small, the loss of diversity concern seems moot. Finally, we dissuss the issue of iatrogenic disorders associated with gene therapy and discuss several ‘real world considerations.’. (shrink)

The prospect of germ-line genetic engineering, the ability to engineer genetic changes that can be passed on to subsequent generations, raises a wide range of moral and public policy questions. One of the most provocative questions is, simply put: Are there moral reasons that can be articulated in general secular terms for accepting human nature as we find it? Or, at least in terms of general secular moral restraints, may we reshape human nature better to meet our own (...) interests, as we define them? This question in turn raises the further question of whether human nature as it now exists has a moral standing akin to sacredness that can be understood in nonreligious terms. This essay will take as a given that it is not possible to show in general secular moral terms that human nature has a sanctity or special moral standing that should guide secular health-care policy. In addition, as this essay shows, it is not possible through appeals to considerations of authorizing consent or beneficence toward others to remedy this failure to establish a sanctity or special moral standing for human nature. Absent a religious or culturally normative understanding of human nature and given the availability of germline genetic engineering, there is a plurality of possibilities for refashioning our nature. The unavailability of substantive secular moral constraints on germ-line genetic engineering discloses a secularly licit plurality of possibilities for human nature. The likelihood that we will be able to refashion our human nature reveals how few general secular moral constraints there are to guide us. Paradoxically, the more we are able to reengineer our human nature, the less guidance is available. The plurality of possible conceptions of human well-being that can be pursued through germ-line genetic engineering challenges our self-understanding as humans. Given human freedom, and in the absence of taken-for-granted religious or cultural moral constraints, the likelihood of germ-line genetic engineering opens the possibility of human nature in the plural. (shrink)

Abstract.Genetic research and its applications pose a significant challenge today, in particular to religious communities. The most critical challenge is to our understanding of human nature and values. This article surveys the challenges and the resources that the monotheistic religions can bring to bear in response. It is important for those religious communities to communicate to the larger society both their common beliefs and values and the diversity among them.

While human genetic research promises to deliver a range of health benefits to the population, genetic research that takes place in Indigenous communities has proven controversial. Indigenous peoples have raised concerns, including a lack of benefit to their communities, a diversion of attention and resources from non-genetic causes of health disparities and racism in health care, a reinforcement of “victim-blaming” approaches to health inequalities, and possible misuse of blood and tissue samples. Drawing on the international literature, this (...) article reviews the ethical issues relevant to genetic research in Indigenous populations and considers how some of these have been negotiated in a genomic research project currently under way in a remote Aboriginal community. We consider how the different levels of Indigenous research governance operating in Australia impacted on the research project and discuss whether specific guidelines for the conduct of genetic research in Aboriginal and Torres Strait Islander communities are warranted. (shrink)

Since Darwin, there has been a long and arduous struggle to understand the source and maintenance of natural genetic variation and its relationship to phenotype. The reason that this task is so difficult is that it requires integration of detailed, and as yet incomplete, knowledge from several biological disciplines, including evolutionary, population, and developmental genetics. In this ‘post‐genomic’ era, it is relatively easy to identify differences in the DNA sequence between individuals. However, the task remains to delineate how this (...) abundant genetic diversity actually contributes to phenotypic diversity. This necessitates tackling the problem of hidden genetic variation. Genetic polymorphisms can be conditionally cryptic, but have the potential to contribute to phenotypic variation in particular genetic backgrounds or under specific environmental conditions. A recent paper by Lauter and Doebley highlights the contribution of hidden genetic variation to traits characterizing the morphological evolution of modern maize from its wild grass‐like progenitor teosinte.1 This work is the first to demonstrate hidden variance for selected (agronomically ‘adaptive’) traits in a well‐characterized model for morphological evolution. BioEssays 24:685–689, 2002. © 2002 Wiley Periodicals, Inc. (shrink)

Genetic variability and diversity are the result of a mutation-selection balance that acts permanently within and between species. The presence of deleterious mutations is a necessary consequence of this process and thus the price paid by a species for its capacity for further evolution (Haldane 1937, Am Nat 71:337–349). Recent estimations of mutation rate in the human lineage has revived the debate as to whether the high number of deleterious mutations poses a severe problem for the future of (...) mankind. Theoretical considerations allow a scenario in which the survival of the human race is maintained by truncation selection of deleterious mutations that removes as many mutations as appear anew in every generation. In this case our genetic burden is carried by those individuals that suffer a genetic death resulting from random distribution of deleterious alleles. Nevertheless, one has to ask whether the mutation rate may set absolute limits on the complexity of a species. (shrink)

Genetically and neurodevelopmentally, there may be a thousand schizophrenias, yet there would be no schizophrenia at all without active contribution from all of us; none – outside the primitive processes that regulate our relationship with one another. In order to understand the nature of schizophrenia as it unfolds relatively uniformly in the social context, we need to depart from an evolutionarily more feasible understanding of society. (Published Online November 9 2006).

How we ought to diagnose, categorise and respond to spectrum disabilities such as autism and Attention Deficit/Hyperactivity Disorder (ADHD) is a topic of lively debate. The heterogeneity associated with ADHD and autism is described as falling on various continua of behavioural, neural, and genetic difference. These continua are varyingly described either as extending into the general population, or as being continua within a given disorder demarcation. Moreover, the interrelationships of these continua are likewise often vague and subject to diverse (...) interpretations. -/- In this paper, I explore geneticists' and self-advocates’ perspectives concerning autism and ADHD as continua. These diagnoses are overwhelmingly analysed as falling on a continuum or continua of underlying traits, which supports the notion of “the neurodiversity spectrum”, i.e., a broader swath of human neural and behavioural diversity on which some concentrations of different functioning are diagnosed. I offer a taxonomy of conceptions of the genetic, phenotypic, and endophenotypic dimensionality within and beyond these diagnostic categories, and suggest that the spectrum of neurodiversity is characteristically endophenotypic. (shrink)

Gene retrocopies are generated by reverse transcription and genomic integration of mRNA. As such, retrocopies present an important exception to the central dogma of molecular biology, and have substantially impacted the functional landscape of the metazoan genome. While an estimated 8,000–17,000 retrocopies exist in the human genome reference sequence, the extent of variation between individuals in terms of retrocopy content has remained largely unexplored. Three recent studies by Abyzov et al., Ewing et al. and Schrider et al. have exploited 1,000 (...) Genomes Project Consortium data, as well as other sources of whole‐genome sequencing data, to uncover novel gene retrocopies. Here, we compare the methods and results of these three studies, highlight the impact of retrocopies in human diversity and genome evolution, and speculate on the potential for somatic gene retrocopies to impact cancer etiology and genetic diversity among individual neurons in the mammalian brain. (shrink)

Conventional methods of genetic engineering and more recent genome editing techniques focus on identifying genetic target sequences for manipulation. This is a result of historical concept of the gene which was also the main assumption of the ENCODE project designed to identify all functional elements in the human genome sequence. However, the theoretical core concept changed dramatically. The old concept of genetic sequences which can be assembled and manipulated like molecular bricks has problems in explaining the natural (...) genome-editing competences of viruses and RNA consortia that are able to insert or delete, combine and recombine genetic sequences more precisely than random-like into cellular host organisms according to adaptational needs or even generate sequences de novo. Increasing knowledge about natural genome editing questions the traditional narrative of mutations (error replications) as essential for generating genetic diversity and genetic content arrangements in biological systems. This may have far-reaching consequences for our understanding of artificial genome editing. (shrink)

A common worry about the genetic engineering of human beings is that it will reduce human genetic diversity, creating a biological monoculture that could not only increase our susceptibility to disease but also hasten the extinction of our species. Thus far, however, the evolutionary implications of human genetic modification remain largely unexplored. In this paper, I consider whether the widespread use of genetic engineering technology is likely to narrow the present range of genetic variation, (...) and if so, whether this would in fact lead to the evolutionary harms that some authors envision. By examining the nature of biological variation and its relation to population immunity and evolvability, I show that not only will genetic engineering have a negligible impact on human genetic diversity, but also that it will be more likely to ensure rather than undermine the health and longevity of the human species. (shrink)

The struggle over genetically-engineered (GE) maize in Mexico reveals a deep conflict over the criteria used in the governance of agri-food systems. Policy debate on the topic of GE maize has become “scientized,” granting experts a high level of political authority, and narrowing the regulatory domain to matters that can be adjudicated on the basis of scientific information or “managed” by environmental experts. While scientization would seem to narrow opportunities for public participation, this study finds that Mexican activists acting “in (...) defense of maize” engage science in multiple ways, using and producing scientific knowledge as well as treating scientific discussions as a stage for launching complex social critiques. Drawing from research in science and technology studies, this article assesses the impacts and pitfalls of three tactics used by maize activists that respond to the scientization of biotechnology politics: (1) using scientific information as a resource; (2) participating in scientific research; and (3) reframing policy problems as broadly social, rather than as solely scientific or technical. The obstacles that maize activists have faced in carrying out each of these efforts indicate that despite diverse and sophisticated engagements between social movements and the scientific field, scientization remains a significant institutional barrier to democratizing agricultural governance. (shrink)

It is not easy to understand the history and origin of the different peoples of today's world inasmuch as scientific data are partial and seemingly contradictory. These roughly fall into three categories:-prehistoric data are remains of cultures and human skeletons. They allow us to affirm that such and such a region was inhabited in such and such an epoch. Their absence, however, means nothing, and they hardly permit the attribution of a biological origin to the peoples of the past because (...) of the rapid evolution of the forms and dimensions of the skeletons during the course of time;-present genetic data give an interesting picture of the biological relationship of peoples and of the way they diverged throughout history. Their interpretation is delicate, however, especially when it concerns small populations;-“biometric” data involve the measurement of pigmentation, dimensions and proportions of the body and organs. They are susceptible to very rapid variations during the course of history and mainly give an indication of the adaptation of the people to a certain kind of environment: tropical, temperate, cold or arctic, plain or altitude, forest, savannah, prairie, steppe or desert. (shrink)

The study of mental illness by the methods of molecular genetics is still in its infancy, but the use of genetic markers in psychiatry may potentially lead to a Virchowian revolution in the conception of mental illness. Genetic markers may define novel clusters of patients having diverse clinical presentations but sharing a common genetic and mechanistic basis. Such clusters may differ radically from the conventional classification schemes of psychiatric illness. However, the reduction of even relatively simple Mendelian (...) phenomena to molecular genetics has been shown to be a surprisingly complex and problematic enterprise. Mental illnesses exist at many levels of including social, environmental, and developmental interactions. Reductionistic shifts in the classification of such a disease entity will have to address the interlevel dynamics that take place within the structure of theories of mental illness. The question of how molecular analysis of psychiatric disease will impact on the structure of existing theories and classification systems is the central topic of this paper. (shrink)

This chapter contains sections titled: Introduction Human DNA as Cultural Property The Genetic Appropriation of Culture Community Identity, Cultural Offense and Control of Genetic Information Conclusion References.