Alan Templeton
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Alan R. Templeton is an American
geneticist A geneticist is a biologist or physician who studies genetics, the science of genes, heredity, and variation of organisms. A geneticist can be employed as a scientist or a lecturer. Geneticists may perform general research on genetic processes ...
and
statistician A statistician is a person who works with theoretical or applied statistics. The profession exists in both the private and public sectors. It is common to combine statistical knowledge with expertise in other subjects, and statisticians may w ...
at Washington University in St. Louis, where he is the Charles Rebstock emeritus professor of biology. From 2010 to 2019, he held positions in the Institute of Evolution and the Department of Evolutionary and Environmental Biology at the
University of Haifa The University of Haifa ( he, אוניברסיטת חיפה Arabic: جامعة حيفا) is a university located on Mount Carmel in Haifa, Israel. Founded in 1963, the University of Haifa received full academic accreditation in 1972, becoming ...
. He is known for his work demonstrating the degree of genetic diversity among
human Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, cultu ...
s and, in his opinion, the biological unreality of human races.


Research

In 2002, Templeton published a genetic analysis showing that some gene variants that are present in modern populations existed already in Asia hundreds of thousands of years ago. This meant that even if our male line (
Y chromosome The Y chromosome is one of two sex chromosomes (allosomes) in therian mammals, including humans, and many other animals. The other is the X chromosome. Y is normally the sex-determining chromosome in many species, since it is the presence or abs ...
) and our female line (
mitochondrial DNA Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial D ...
) came out of Africa in the last 100,000 years or so, we have inherited other genes from populations that were already outside of Africa. Since this study other studies have been done using much more data (see
Phylogeography Phylogeography is the study of the historical processes that may be responsible for the past to present geographic distributions of genealogical lineages. This is accomplished by considering the geographic distribution of individuals in light of ge ...
). According to Templeton's research, perceived differences in races are more related to cultural perceptions and biases than any underlying genetic reality. For example, Templeton's statistical analysis of the
human genome The human genome is a complete set of nucleic acid sequences for humans, encoded as DNA within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria. These are usually treated separately as the ...
shows that much greater
genetic diversity Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species, it ranges widely from the number of species to differences within species and can be attributed to the span of survival for a species. It is dis ...
exists between populations of
chimpanzee The chimpanzee (''Pan troglodytes''), also known as simply the chimp, is a species of great ape native to the forest and savannah of tropical Africa. It has four confirmed subspecies and a fifth proposed subspecies. When its close relative t ...
s than humans from different parts of the world. Using data from the International HapMap Project and the 1000 Genomes project, Templeton and a team of researchers looked at mutations encompassing the gephyrin gene of
chromosome 14 Chromosome 14 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 14 spans about 107 million base pairs (the building material of DNA) and represents between 3 and 3.5% of the total DNA ...
and were able to trace the split back to the last common ancestor.


References


External links


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at Washington University in St. Louis * {{DEFAULTSORT:Templeton, Alan American geneticists Washington University in St. Louis faculty American anthropologists Living people Year of birth missing (living people) University of Michigan alumni Washington University in St. Louis alumni Fellows of the American Academy of Arts and Sciences