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population genetics |
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population genetics [‚päp·yə′lā·shən jə′ned·iks] (genetics) The study of both experimental and theoretical consequences of Mendelian heredity on the population level; includes studies of gene frequencies, genotypes, phenotypes, mating systems, selection, and migration. Population genetics The study of both experimental and theoretical consequences of mendelian heredity on the population level, in contradistinction to classical genetics which deals with the offspring of specified parents on the familial level. The genetics of populations studies the frequencies of genes, genotypes, and phenotypes, and the mating systems. It also studies the forces that may alter the genetic composition of a population in time, such as recurrent mutation, migration, and intermixture between groups, selection resulting from genotypic differential fertility, and the random changes incurred by the sampling process in reproduction from generation to generation. This type of study contributes to an understanding of the elementary step in biological evolution. The principles of population genetics may be applied to plants and to other animals as well as humans. See Genetics, Mendelism How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Other population geneticists have reached a similar conclusion by examining the genes in the parasite's mitochondria. These large conferences offer the inquisitive physician entrepreneur the opportunity to hear how venture capitalists, population geneticists, business development experts, biotech CEOs, and big pharma scientists view the potential of the sequencing of the human genome to change medicine. Cholera does not seem to have reached Europe until the 1800s, too late to explain the high frequency of the mutant cftr gene, say population geneticists. |
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