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Genetic variability is either the presence of, or the generation of, genetic differences. It is defined as "the formation of individuals differing in genotype , or the presence of genotypically different individuals, in contrast to environmentally induced differences which, as a rule, cause only temporary, nonheritable changes of the phenotype ."
Genetic variation was thus increased and resulted in a significant increase in population growth of the Florida Panther. [39] Creating or maintaining high genetic diversity is an important consideration in species rescue efforts, in order to ensure the longevity of a population.
Genetic variation can be identified at many levels. Identifying genetic variation is possible from observations of phenotypic variation in either quantitative traits (traits that vary continuously and are coded for by many genes, e.g., leg length in dogs) or discrete traits (traits that fall into discrete categories and are coded for by one or a few genes, e.g., white, pink, or red petal color ...
Human genetic variation is the genetic differences in and among ... populations experience greater genetic drift because of increased fluctuations in neutral ...
This is a diagram of a soft selective sweep from standing genetic variation. It shows the different steps (a neutral mutation becomes beneficial, increases in frequency and fixes in a population) and the effect on nearby genetic variation. This is a diagram of a multiple origin soft selective sweep from recurrent mutation. It shows the ...
Heritability increases when genetics are contributing more variation or because non-genetic factors are contributing less variation; what matters is the relative contribution. Heritability is specific to a particular population in a particular environment.
The increased human activity brings increased roads and traffic, but also increases road maintenance, plowing, and snow compaction, inadvertently clearing a path for bobcats to travel by. The anthropogenic influence on bobcat migration pathways is an example of urban facilitation via opening up a corridor for gene flow.
Soft sweeps from standing genetic variation (SGV) occurs when previously neutral mutations that were present in a population become beneficial because of an environmental change. Such a mutation may be present on several genomic backgrounds so that when it rapidly increases in frequency it does not erase all genetic variation in the population.