Impact of founder population, drift and selection on the genetic diversity of a recently translocated tree population
No bottleneck ... variation for adaptive traits did not change either. Thus, initial genetic changes first proceed from a rapid re-organisation of the diversity through mating and recombination, whereas genetic erosion through drift and selection is ...
Imagine If Sex Were Only For IQs Over 120
They claim that the relatively high disease allele frequency is explained by positive, natural selection for ... effects from founder effect events remain the most likely explanation of elevated disease allele frequencies among the Ashkenazim.
Genetic distinctiveness vs. genetic diversity
Unless there is selection at the ... It’s a proxy for genetic diversity, as more allelic diversity produces more heterozygosity. The decay of heterozygosity over time due to random genetic drift (without mutation) can be modeled like so: Ht = H0(1 ...
The Genes Made Us Do It
The thesis of this book is that although culture is important, genetic ... some sort of effect on the form and structure of the body. This is not news; anthropologists have been trying to tabulate and understand the biological differences among peoples ...
The Popular View Of DNA
To many, DNA represents the definitive code which governs all ... minor force for everything except possible novel traits. The biggest factors are genetic drift and selection. (2) This isn't to suggest that many biological processes are not conserved ...