Genetic Drift and the Founder Effect: Eastern Pennsylvania is home to beautiful farmlands and countryside, but it's also a gold mine of information for geneticists, ...

While an N e of 20 to 30 is quite low, especially if the goal is 500, more worrisome is the fact that the captive vultures appear to be losing, not gaining, genetic ground. In other words, their N ...

Natural selection, genetic drift, and gene flow are the mechanisms that cause changes in allele frequencies over time. When one or more of these forces are acting in a population, the population ...

Genetic drift is the term used in population genetics to refer to the statistical drift over time of gene frequencies in a population due to random sampling effects in the formation of successive ...

Additive genetic variance is pretty simple, you take a locus (gene) and substitue alleles (variants of genes) and see the effect it is has on the trait. Obviously you have variation on other genes, ...

Tolerating genetic drift while evolving new ... Although these don't immediately affect an organism's fitness—they're not harmful or immediately helpful—they can actually help it adapt in ...

Genetic disease is ravaging Lancaster County's Amish and helping to shape the future of medical care for everyone, thanks to the work of a specialty Strasburg clinic.

Genetic Drift and the Founder Effect: Eastern Pennsylvania is home to beautiful farmlands and countryside, but it's also a gold mine of information for geneticists, ...