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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 correlated to the span of survival for a species. [ 1] It is distinguished from genetic variability, which describes the tendency of genetic characteristics ...
An interdisciplinary branch of population genetics which applies genetic methods and concepts in an effort to understand the dynamics of genes in populations, with a principal aim of avoiding extinctions and preserving and restoring biodiversity. conspecific. Belonging to the same species. convergent evolution.
t. e. Genetic variation is the difference in DNA among individuals [ 1] or the differences between populations among the same species. [ 2] The multiple sources of genetic variation include mutation and genetic recombination. [ 3] Mutations are the ultimate sources of genetic variation, but other mechanisms, such as genetic drift, contribute to ...
Genetic distance is measured by the fixation index (F ST). F ST is the correlation of randomly chosen alleles in a subgroup to a larger population. It is often expressed as a proportion of genetic diversity. This comparison of genetic variability within (and between) populations is used in population genetics. The values range from 0 to 1; zero ...
Human genetic variation is the genetic differences in and among populations. There may be multiple variants of any given gene in the human population ( alleles ), a situation called polymorphism . No two humans are genetically identical. Even monozygotic twins (who develop from one zygote) have infrequent genetic differences due to mutations ...
In genetics, the phenotype (from Ancient Greek φαίνω (phaínō) 'to appear, show' and τύπος (túpos) 'mark, type') is the set of observable characteristics or traits of an organism. [ 1][ 2] The term covers the organism's morphology (physical form and structure), its developmental processes, its biochemical and physiological ...
Mutations can involve the duplication of large sections of DNA, usually through genetic recombination. [ 9] These duplications are a major source of raw material for evolving new genes, with tens to hundreds of genes duplicated in animal genomes every million years. [ 10] Most genes belong to larger gene families of shared ancestry, detectable ...
Gene flow is the transfer of alleles from one population to another population through immigration of individuals. In population genetics, gene flow (also known as migration and allele flow) is the transfer of genetic material from one population to another. If the rate of gene flow is high enough, then two populations will have equivalent ...