Simple poll: what contributes most to intelligence/success?

<p>Intelligence:</p>

<p>0) completely genetic
1) Mostly genetic
2) roughly equal combination of genes and environment, lots of variation
3) mostly environment
4) completely environmental</p>

<p>Success:</p>

<p>a) completely genetic
b) Mostly genetic
c) roughly equal combination of genes and environment, lots of variation
d) mostly environment
e) completely environmental</p>

<p>==</p>

<p>Secondary question:</p>

<p>The average IQ of blacks is 85. The average IQ of Jews is 115. Asians 106, Whites 100. What do you think are the reasons for this inter-racial difference? </p>

<p>0) completely genetic
1) Mostly genetic
2) roughly equal combination of genes and environment, lots of variation
3) mostly environment
4) completely environmental</p>

<p>2d</p>

<p>Then again, being a humanist, I would say there is the factor, not in intelligence, but in success, of using intelligence.</p>

<p>Q1:</p>

<p>1) Mostly genetic</p>

<p>Q2:</p>

<p>c) roughly equal combination of genes and environment, lots of variation</p>

<p>here though => genes also contribute to personality. Intelligence only has a correlation coefficient of 0.3 with income IIRC. It decreases when you control for specific careers, moreover</p>

<p>Q3:</p>

<p>1) Mostly genetic</p>

<p>==</p>

<p>
[quote]

Then again, being a humanist, I would say there is the factor, not in intelligence, but in success, of using intelligence.

[/quote]
</p>

<p>you have a very good point there - the sorting process is based on IQ tests, which tends to widen the cultural capital gap</p>

<p>That's true, but it's not quite what I meant (what I really meant that the choice to apply intelligence was an important force in success). Oh well.</p>

<p>As for the secondary question, which I didn't see earlier, 4. IQ tests are pretty screwed up, and they can be taught. Plus, evidence for this viewpoint is the fact that Indian and Chinese people are very, very distantly related (about as related as Indians and Africans), and yet their IQs are similar, so this cannot be explained by common ancestry. This can be explained by an environmental trait, motivation due to culture, which is often found in immigrants. If you actually go to India or China and have people take non-culturally biased IQ tests, you will probably still see a drastic difference.</p>

<p>
[quote]
IQ tests are pretty screwed up, and they can be taught.

[/quote]
</p>

<p>IQ tests are less teachable than SAT tests. And while the SAT can be taught - people experience diminishing marginal utility with increasing amounts of instruction. Hence why the Collegeboard reports that the average score increase of repeat test takers is very small.</p>

<p>Of course - this could also be due to inadequate preparation tools.</p>

<p>
[quote]
Plus, evidence for this viewpoint is the fact that Indian and Chinese people are very, very distantly related (about as related as Indians and Africans), and yet their IQs are similar, so this cannot be explained by common ancestry.

[/quote]
</p>

<p>Similar IQs can be explained by differing environments that produced selection pressures that favored higher intelligence irrespective of origin.</p>

<p>
[quote]
This can be explained by an environmental trait, motivation due to culture, which is often found in immigrants.

[/quote]
</p>

<p><a href="http://courses.washington.edu/academy3/articles/Tyson,%20Darity,%20Castellino,%202005.pdf%5B/url%5D"&gt;http://courses.washington.edu/academy3/articles/Tyson,%20Darity,%20Castellino,%202005.pdf&lt;/a&gt;&lt;/p>

<p>However, does motivation due to culture really explain all of the difference? </p>

<p>We need to isolate three variables
(a) could decreased intelligence lead to decreased motivation in the first place?
(b) a culture that values academics, but that still underperforms
(c) a culture that does not value academics, but overperforms.</p>

<p>However, (a) can prevent cultures (b) and (c) from being realized. In fact, we may never find (a), (b), or (c), and differences in intelligence due to intrinsic differences in aptitude may still exist. In any case, this poll is a poll of belief, not of debate. We will be able to isolate QTI that correlate with intelligence in the near future, which should enlighten the debate.</p>

<p>cheating </p>

<p>haha JK
Intelligence question:
2
Success question:
e</p>

<p>Secondary question:
"Races" do not exist. Even if you ignore that, this question doesn't make any sense. Judaism is a religion (and culture), not a "race". Anyone can practice Judaism. Many Jews are "Asian" (There are many Jews in Israel/Gaza/West Bank, Iran, etc.). Also, there are "black" and "white" Jews.</p>

<p>and IQ is pretty meaningless anyways.
There are 8 (or 9, depending on who you ask) types of intelligence, but IQ tests generally only test 3 types of intelligence.
Either way, IQ tests totally ignore most types of intelligence.</p>

<p>Race does not exist. These groups aren't accurate. "Asian" defines a geographical origin, not a racial one, as does African. But to answer the question...2d also. I am more of a behaviorist.</p>

<p>Q3: 4 (like I said, I'm a behaviorist)
There are a lot of issues with IQ tests. They can be culturally biased. They only measure certain kinds of intelligence while disregarding other forms. Seriously, if the average for blacks is 85, that would psychologically classify them as mildly retarded. An entire group like that is not mildly retarded.</p>

<p><a href="http://en.wikipedia.org/wiki/Race_and_intelligence_%28test_data%29%5B/url%5D"&gt;http://en.wikipedia.org/wiki/Race_and_intelligence_%28test_data%29&lt;/a&gt;&lt;/p>

<h1>It's also found in Herrnstein and Murray's "Bell Curve". I was fairly shocked to learn that the average IQ for blacks was 85 (though I always lived in regions with few blacks). Here though - I'm sure that blacks have social abilities that help them succeed despite their relatively lower IQs. IQs are only based on correlations anyhow</h1>

<p>Jews are an ethnic group - not a religion. <a href="http://en.wikipedia.org/wiki/Ashkenazi_Jews%5B/url%5D"&gt;http://en.wikipedia.org/wiki/Ashkenazi_Jews&lt;/a>
There are quite a few scientists who are Jewish agnostics - Feynman is one for example</p>

<p>What's your source for the average IQ stats?</p>

<p>Judaism is a religion.
I could convert to Judaism if I wanted to (and if they accepted me, etc.)
<a href="http://en.wikipedia.org/wiki/Conversion_to_Judaism%5B/url%5D"&gt;http://en.wikipedia.org/wiki/Conversion_to_Judaism&lt;/a&gt;&lt;/p>

<p>There is a Jewish ethnic group AND a Jewish religion.</p>

<p>The same word is used for merely HISTORICAL REASONS.</p>

<p>There are quite a few Jewish atheists/agnostics - Steven Pinker, Feynman, David Horowitz, etc..</p>

<p>==</p>

<p>Sources:
<a href="http://www.michna.com/intelligence.htm%5B/url%5D"&gt;http://www.michna.com/intelligence.htm&lt;/a&gt;&lt;/p>

<p>(this is a report that is CRITICAL of the Bell Curve - it still accepts the test data)

[quote]
Mean Scores of Different Ethnic Groups</p>

<p>Asian Americans. In the years since the Second World War, Asian Americans, especially those of Chinese and Japanese extraction, have compiled an outstanding record of academic and professional achievement. This record is reflected in school grades, in scores on content-oriented achievement tests like the SAT and GRE, and especially in the disproportionate representation of Asian Americans in many sciences and professions. Although it is often supposed that these achievements reflect correspondingly high intelligence test scores, this is not the case. In more than a dozen studies from the 1960s and 1970s analyzed by Flynn (1991), the mean IQs of Japanese- and Chinese American children were always around 97 or 98; none was over 100. Even Lynn (1993), who argues for a slightly higher figure concedes that the achievements of these Asian Americans far outstrip what might have been expected on the basis of their test scores.</p>

<p>It may be worth noting that the interpretation of test scores obtained by Asians in Asia has been controversial in its own right. Lynn (1982) reported a mean Japanese IQ of 111, Flynn (1991) estimated it to be between 101 and 105; Stevenson et al (1985), comparing the intelligence-test performance of children in Japan, Taiwan and the United States, found no substantive differences at all. Given the general problems of cross-cultural comparison, there is no reason to expect precision or stability in such estimates. Nevertheless some interest attaches to these particular comparisons: they show that the well-established differences in school achievement among the same three groups (Chinese and Japanese children are much better at math than American children) do not simply reflect differences in psychometric intelligence. Stevenson et a1(1986) suggest that they result from structural differences in the schools of the three nations as well as from varying cultural attitudes toward learning itself. It is also possible that spatial ability, in which Japanese and Chinese obtain somewhat higher scores than Americans, plays a particular role in the learning of mathematics.</p>

<p>One interesting way to assess the achievements of Chinese- and Japanese-Americans is to reverse the usual direction of prediction. Data from the 1980 census shows that the proportion of Chinese Americans employed in managerial, professional, or technical occupations was 55% and that of Japanese was 46%. (For whites, the corresponding figure was 34%.) Using the well-established correlation between intelligence test scores and occupational level, Flynn (1991, p.99) calculated the mean IQ that a hypothetical White group "would have to have" to predict the same proportions of upper-level employment. He found that the occupational success of these Chinese Americans, whose mean IQ was in fact slightly below 100, was what would be expected of a White group with an IQ of almost 120! A similar calculation for Japanese-Americans shows that their level of achievement matched that of Whites averaging 110. These "over-achievements" serve as sharp reminders of the limitations of IQ-based prediction. Various aspects of Chinese-American and Japanese American culture surely contribute to them (Schneider, Hieshima, Lee & Plank, 1994); gene-based temperamental factors could conceivably be playing a role as well (Freedman & Freedman, 1969).</p>

<p>Hispanic Americans. Hispanic immigrants have come to America from many countries. In 1993, the largest Latino groups in the continental United States were Mexican Americans (64%), Puerto Ricans (11%), Central and South Americans (13%), and Cubans (5%) (U.S. Bureau of the Census, 1994). There are very substantial cultural differences among these nationality groups, as well as differences in academic achievement (Duran, 1983; USNCEP, 1982). Taken together, Latinos make up the second largest and the fastest-growing minority group in America (Davis, Haub & Willette, 1983; Eyde, 1992).</p>

<p>The mean intelligence test scores of Hispanics typically lie between those of Blacks and Whites. There are also differences in the patterning of scores across different abilities and subtests (Hennessy & Merrifield, 1978; Lesser, Fifer & Clark, 1965). Linguistic factors play a particularly important role for Hispanic Americans, who may know relatively little English. (By one estimate, 25% of Puerto Ricans and Mexican Americans and at least 40% of Cubans speak English 'not well" or 'not at all"—Rodriguez, 1992). Even those who describe themselves as bilingual may be at a disadvantage if Spanish was their first and best-learned language. It is not surprising that Latino children typically score higher on the performance than on the verbal subtests of the English-based WISC-R (Kaufman, 1994). Nevertheless, the predictive validity of Latino test scores is not negligible. In young children, the WISC-R has reasonably high correlations with school achievement measures (McShane & Cook, 1985). For high school students of moderate to high English proficiency, standard aptitude tests predict first-year college grades about as well as they do for non Hispanic Whites (Pennock-Roman, 1992).</p>

<p>Native Americans. There are a great many culturally distinct North American Indian tribes (Driver, 1969), speaking some 200 different languages (Leap, 1981). Many Native Americans live on reservations, which themselves represent a great variety of ecological and cultural settings. Many others presently live in metropolitan areas (Brandt, 1984). Although few generalizations can be appropriate across so wide a range, two or three points seem fairly well established. The first is a specific relation between ecology and cognition: the Inuit (Eskimo) and other groups that live in the arctic tend to have particularly high visual-spatial skills. (For a review see McShane & Berry, 1988.) Moreover, there seem to be no substantial sex differences in those skills (Berry, 1974). It seems likely that this represents an adaptation—genetic or learned or both—to the difficult hunting, traveling and living conditions that characterize the arctic environment.</p>

<p>On the average Indian children obtain relatively low scores on tests of verbal intelligence, which are often administered in school settings. The result is a performance-test/verbal-test discrepancy similar to that exhibited by Hispanic Americans and other groups whose first language is generally not English. Moreover, many Indian children suffer from chronic middle-ear infection (otitis media), which is "the leading identifiable disease among Indians since record-keeping began in 1962" (McShane & Plas, 1984b, p.84). Hearing loss can have marked negative effects on verbal test performance (McShane & Plas, 1984a).</p>

<p>African Americans. The relatively low mean of the distribution of African-American intelligence test scores has been discussed for many years. Although studies using different tests and samples yield a range of results, the Black mean is typically about one standard deviation (about 15 points) below that of Whites (Loehlin et al, 1975; Jensen, 1980; Reynolds et al, 1987). The difference is largest on those tests (verbal or non-verbal) that best represent the general intelligence factor g (Jensen, 1985). It is possible, however, that this differential is diminishing. In the most recent re-standardization of the Stanford-Binet test, the Black/White differential was 13 points for younger children and 10 points for older children (Thorndike et al, 1986). In several other studies of children since 1980, the Black mean has consistently been over 90 and the differential has been in single digits (Vincent, 1991). Larger and more definitive studies are needed before this trend can be regarded as established.</p>

<p>Another reason to think the IQ mean might be changing is that the Black/ White differential in achievement scores has diminished substantially in the last few years. Consider, for example, the mathematics achievement of five year olds as measured by the National Assessment of Educational Progress (NAEP). The differential between Black and White scores, about 1.1 standard deviations as recently as 1978, had shrunk to .65 SD by 1990 (Grissmer et al, 1994) because of Black gains. Hispanics showed similar but smaller gains; there was little change in the scores of Whites. Other assessments of school achievement also show substantial recent gains in the performance of minority children.</p>

<p>In their own analysis of these gains, Grissmer et al (1994) cite both demographic factors and the effects of public policy. They found the level of parents' education to be a particularly good predictor of children's' school achievement; that level increased for all groups between 1970 and 1990, but most sharply for Blacks. Family size was another good predictor (children from smaller families tend to achieve higher scores); here too, the largest change over time was among Blacks. Above and beyond these demographic effects, Grissmer et al believe that some of the gains can be attributed to the many specific programs, geared to the education of minority children, that were implemented during that period.</p>

<p>Test Bias. It is often argued that the lower mean scores of African Americans reflect a bias in the intelligence tests themselves. This argument is right in one sense of "bias" but wrong in another. To see the first of these, consider how the term is used in probability theory. When a coin comes up heads consistently for any reason it is said to be 'biased," regardless of any consequences that the outcome may or may"not have. In this sense the Black/White score differential is ipso facto evidence of what may be called "outcome bias." African Americans are subject to outcome bias not only with respect to tests but along many dimensions of American life. They have the short end of nearly every stick: average income, representation in high-level occupations, health and health care, death rate, confrontations with the legal system, and so on. With this situation in mind, some critics regard the test score differential as just another example of a pervasive outcome bias that characterizes our society as a whole (Jackson, 1975; Mercer, 1984). Although there is a sense in which they are right, this critique ignores the particular social purpose that tests are designed to serve.</p>

<p>From an educational point of view, the chief function of mental tests is as predictors (Section 2). Intelligence tests predict school performance fairly well, at least in American schools as they are now constituted. Similarly, achievement tests are fairly good predictors of performance in college and postgraduate settings. Considered in this light, the relevant question is whether the tests have a "predictive bias" against Blacks, Such a bias would exist if African-American performance on the criterion variables (school achievement, college GPA, etc.) were systematically higher than the same subjects' test scores would predict. This is not the case. The actual regression lines (which show the mean criterion performance for individuals who got various scores on the predictor) for Blacks do not lie above those for Whites; there is even a slight tendency in the other direction (Jensen, 1980; Reynolds &:Brown, 1984). Considered as predictors of future performance, the tests do not seem to be biased against African Americans.</p>

<p>Characteristics of Tests. It has been suggested that various aspects of the way tests are formulated and administered may put African Americans at an disadvantage. The language of testing is a standard form of English with which some Blacks may not be familiar; specific vocabulary items are often unfamiliar to Black children; the tests are often given by White examiners rather than by more familiar Black teachers; African Americans may not be motivated to work hard on tests that so clearly reflect White values; the time demands of some tests may be alien to Black culture. (Similar suggestions have been made in connection with the test performance of Hispanic Americans, e.g., Rodriguez, 1992.) Many of these suggestions are plausible, and such mechanisms may play a role in particular cases. Controlled studies have shown, however, that none of them contributes substantially to the Black/White differential under discussion here (Jensen, 1980; Reynolds 82 Brown, 1984; for a different view see Helms, 1992). Moreover, efforts to devise reliable and valid tests that would minimize disadvantages of this kind have been unsuccessful.

[/quote]
</p>

<p>Intelligence:
1) Mostly genetic</p>

<p>Most studies have indicated that an individual's intelligence is somewhere around 40-80% inherited. This isn't really in dispute.</p>

<p>Success:
c) roughly equal combination of genes and environment, lots of variation</p>

<p>Success isn't perfectly related to IQ. If we define success as income, there's approximately a .4 to .5 correlation between the two, and as IQ increases, the correlation tends to decrease. Though this might at first seem counter-intuitive, keep in mind that the smartest people often enter such relatively low paying careers fields as the sciences, whereas those who are slightly lower on the IQ scale tend to do pure business in greater propensity and make more money (not saying that there aren't extremely smart people in business).</p>

<p>
[quote]
The average IQ of blacks is 85. The average IQ of Jews is 115. Asians 106, Whites 100. What do you think are the reasons for this inter-racial difference?

[/quote]
</p>

<p>This is a tough question. I believe that the answer lies somewhere between "mostly genetic" and "roughly equal combination of genes and environment, lots of variation," and only tentatively at that. The issue is extremely contentious, and it's difficult to isolate the genetic and environmental differences between the races. Here's a suggestion by Charles Murray in a recent issue of Commentary that might help shed some light on the issue:</p>

<p>
[quote]
The abbreviated version is this: a substantial proportion of IQ is shaped by environmental influences, but not the kind of environmental influences that first come to mind. Such things as reading to children, having many books in the house, and valuing education actually have a small causal role. The big factors are genes and the “nonshared environment”— a m</p>

<p>I think it's ridiculous that (some of) you guys are still stuck in the idea that blacks have lower IQs because of inferior genetics. Race is a farse, nonexistant, something we came up with to assert our superiority over others.</p>

<p>
[quote]
Race is a farse, nonexistant, something we came up with to assert our superiority over others.

[/quote]
</p>

<p>I understand where you're coming from, but piles upon piles of research have found genetic differences between races with respect to all sorts of things. It's definitely a real, biological concept.</p>

<p>Now, it's certainly possible that one of these differences is intelligence. Here, the research is more speculative, but it's a possibility, and not one to be discounted because of past racism.</p>

<p>
[quote]
It is the mark of an educated mind to be able to entertain a thought without accepting it.

[/quote]

-Aristotle</p>

<p>
[quote]
Race is a farse, nonexistant, something we came up with to assert our superiority over others.

[/quote]

QFT
some people really need to take a human geography class</p>

<p>Fact: Asians are far more likely to become lactose intolerant than other races. Scandinavians have the lowest rates
Fact: There are drugs specialized to treat illnesses in African Americans
Fact: Some races are more susceptible to diabetes than others. The Pima Indians, for example, have astonishingly high rates of diabetes
Fact: African Americans have far higher rates of high blood pressure and associated complications than people of other races
Fact: Asian Americans have the lowest rates of breast cancer among all races.</p>

<p>This is just a small amount of the epidemiological research regarding differences among races. The fact is - humans have evolved to fit in with different environments - and yes - selection pressures of small amounts can act to form differences such as these. We cannot rule out intelligence as one of those differences. The Human Genome has just been sequenced - and we are already identifying differences in genes between different populations. One example:</p>

<p><a href="http://www.tdaxp.com/archive/2006/08/20/are-americans-hyperactive-neanderthals.html%5B/url%5D"&gt;http://www.tdaxp.com/archive/2006/08/20/are-americans-hyperactive-neanderthals.html&lt;/a&gt;&lt;/p>

<p>
[quote]
"The D4 dopamine receptor (DRD4) locus may be a model system for understanding the relationship between genetic variation and human cultural diversity." (Harpending and Cochran 10)</p>

<p>"[Ding et al] showed that the allele associated with ADHD has increased a lot in frequency within the last few thousand to tens of thousands of years." (Harpending and Cochran 10)</p>

<p>"This curious pattern, an allele that has been in the population for a very long time at a very low frequency, suggests that some kind of balancing selection has been maintaining 7R, but preventing it from becoming common until recently. An alternative is that 7R was incorporated form another hominid species during the expansion of modern humans." (Harpending and Cochran 10)</p>

<p>"It is entirely possible that some psychological traits are adaptive yet, because they are irritating or undesirable, are called mental illness." (Harpending and Cochran 10)</p>

<p>"Even if 40 or 50 thousand years were too short a time for the evolutionary development of a truly new and highly complex mental adaption, which is by no means certain, it is certainly long enough for some groups to lose such an adaption, for some groups to develop a highly exaggerated version of an adaption, or for changes int eh triggers or timing of that adaption to evolve." (Harpending and Cochran 10-11)</p>

<p>"These selective forces must not be the same in all populations, because the 7R allele is quite common in some populations (South American Indians), exists at intermediate frequencies in others (Europeans and Africans), and is rare or non-existant in yet others (East Asia, !Kung Bushmen) (2)." (Harpending and Cochran 11)

[/quote]
</p>

<p>1) Races don't exist.</p>

<p>"Because race is a biological concept referring to a genetically and geographically distinct subgroup of a species, there are today no such things as races within our human species. There are, however, genetic differences between members of the species as a consequence of an earlier period of isoalation in groups in different environment. Biologically, these differences are not sufficient to merit designation as races. These biological facts are of basic importance. They immediately inform us, for example, that it is incorrect to equate a cultural group with a racial group. Thus, there is a Jewish religion but not a Jewish race. Similarly, there are Aryan languages but not an Aryan race. In brief, there is no human group in which all members are genetically alike. There are no races within our human species." source: Human Geography by Norton
2) To repeat what someone on the last page said, Asia,Africa,India,etc. are regions.</p>

<p>Argh! I don't get it. The controversy is so impossibly great. On the one hand, you have [this[/url</a>], and on the other hand, you have [url=<a href="http://en.wikipedia.org/wiki/Minnesota_Transracial_Adoption_Study%5Dthis%5B/url"&gt;http://en.wikipedia.org/wiki/Minnesota_Transracial_Adoption_Study]this[/url&lt;/a&gt;]. Researchers on both sides tend to be quite partisan, and I don't know if a consensus will ever be reached. Furthermore, I don't think that we as high schoolers are particularly qualified to debate the issue; many of the facts are quite esoteric and statistical, and unless there are published researchers debating on this forum (which I tend to doubt), I'll reserve my commentary, save for the following:</p>

<p>@goodusername</p>

<p>Textbooks, especially those written by sole researchers, can certainly express a partisan viewpoint. Apparently, however,</p>

<p>
[quote]
Slightly over half of all biological/physical anthropologists today believe in the traditional view that human races are biologically valid and real. Furthermore, they tend to see nothing wrong in defining and naming the different populations of Homo sapiens. The other half of the biological anthropology community believes either that the traditional racial categories for humankind are arbitrary and meaningless, or that at a minimum there are better ways to look at human variation than through the "racial lens."</p>

<p>...</p>

<p>First, I have found that forensic anthropologists attain a high degree of accuracy in determining geographic racial affinities (white, black, American Indian, etc.) by utilizing both new and traditional methods of bone analysis. Many well-conducted studies were reported in the late 1980s and 1990s that test methods objectively for percentage of correct placement. Numerous individual methods involving midfacial measurements, femur traits, and so on are over 80 percent accurate alone, and in combination produce very high levels of accuracy. No forensic anthropologist would make a racial assessment based upon just one of these methods, but in combination they can make very reliable assessments, just as in determining sex or age. In other words, multiple criteria are the key to success in all of these determinations.</p>

<p>...</p>

<p>I have been able to prove to myself over the years, in actual legal cases, that I am more accurate at assessing race from skeletal remains than from looking at living people standing before me.

[/quote]
</p>

<p><a href="http://www.pbs.org/wgbh/nova/first/gill.html%5B/url%5D"&gt;http://www.pbs.org/wgbh/nova/first/gill.html](&lt;a href="http://www.innovations-report.com/html/reports/studies/report-43536.html%5Dthis%5B/url"&gt;http://www.innovations-report.com/html/reports/studies/report-43536.html)&lt;/a&gt;&lt;/p>

<p><a href="http://record.wustl.edu/archive/1998/10-15-98/articles/races.html%5B/url%5D"&gt;http://record.wustl.edu/archive/1998/10-15-98/articles/races.html&lt;/a>

[quote]
Biological differences among races do not exist, WU research shows
By Tony Fitzpatrick</p>

<p>Race doesn't matter.</p>

<p>In fact, it doesn't even exist in humans.</p>

<p>While that may sound like the idealistic decree of a minister or rabbi, it's actually the conclusion of an evolutionary and population biologist at Washington University.</p>

<p>Alan R. Templeton, Ph.D., professor of biology in Arts and Sciences, has analyzed DNA from global human populations that reveal the patterns of human evolution over the past one million years. He shows that while there is plenty of genetic variation in humans, most of the variation is individual variation. While between-population variation exists, it is either too small, which is a quantitative variation, or it is not the right type of qualitative variation -- it does not mark historical sublineages of humanity.</p>

<p>Using the latest molecular biology techniques, Templeton has analyzed millions of genetic sequences found in three distinct types of human DNA and concludes that, in the scientific sense, there is no such thing as race.</p>

<p>"Race is a real cultural, political and economic concept in society, but it is not a biological concept, and that unfortunately is what many people wrongfully consider to be the essence of race in humans -- genetic differences," Templeton said. "Evolutionary history is the key to understanding race, and new molecular biology techniques offer so much on recent evolutionary history. I wanted to bring some objectivity to the topic. This very objective analysis shows the outcome is not even a close call: There's nothing even like a really distinct subdivision of humanity."</p>

<p>Templeton used the same strategy to try to identify race in human populations that evolutionary and population biologists use for non-human species, from salamanders to chimpanzees. He treated human populations as if they were non-human populations.</p>

<p>"I'm not saying these results don't recognize genetic differences among human populations," he cautioned. "There are differences, but they don't define historical lineages that have persisted for a long time."</p>

<p>Templeton's paper, "Human Races: A Genetic and Evolutionary Perspective," is published in the fall 1998 issue of the American Anthropologist, an issue almost exclusively devoted to race. The new editor-in-chief of the American Anthropologist is Robert W. Sussman, Ph.D., professor of anthropology in Arts and Sciences.</p>

<p>"The folk concept of race in America is so ingrained as being biologically based and scientific that it is difficult to make people see otherwise," said Sussman, a biological anthropologist. "We live on the one-drop racial division --if you have one drop of black or Native American blood, you are considered black or Native American, but that doesn't cover one's physical characteristics.</p>

<p>"Templeton's paper," Sussman continued, "shows that if we were forced to divide people into groups using biological traits, we'd be in real trouble. Simple divisions are next to impossible to make scientifically, yet we have developed simplistic ways of dividing people socially."</p>

<p>Single lineage
Templeton analyzed genetic data from mitochondrial DNA, a form inherited only from the maternal side; Y chromosome DNA, paternally inherited DNA; and nuclear DNA, inherited from both sexes. His results showed that 85 percent of genetic variation in the human DNA was due to individual variation. A mere 15 percent could be traced to what could be interpreted as "racial" differences.</p>

<p>"The 15 percent is well below the threshold that is used to recognize race in other species," Templeton said. "In many other large mammalian species, we see rates of differentiation two or three times that of humans before the lineages are even recognized as races. Humans are one of the most genetically homogenous species we know of. There's lots of genetic variation in humanity, but it's basically at the individual level. The between-population variation is very, very minor."</p>

<p>Among Templeton's conclusions: There is more genetic similarity between Europeans and sub-Saharan Africans and between Europeans and Melanesians, inhabitants of islands northeast of Australia, than there is between Africans and Melanesians. Yet, sub-Saharan Africans and Melanesians share dark skin, hair texture and cranial-facial features, traits commonly used to classify people into races. According to Templeton, this example shows that "racial traits" are grossly incompatible with overall genetic differences between human populations.</p>

<p>"The pattern of overall genetic differences instead tells us that genetic lineages rapidly spread out to all of humanity, indicating that human populations have always had a degree of genetic contact with one another, and thus historically don't show any distinct evolutionary lineages within humanity," Templeton said. "Rather, all of humanity is a single long-term evolutionary lineage."</p>

<h2>

[/quote]
</h2>