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Oud 19 maart 2017, 19:44   #694
Peche
Banneling
 
 
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Citaat:
Oorspronkelijk geplaatst door Athelas Bekijk bericht
??.???.? Whut?
Praha mode: ik zie de tegenstrijdigheid niet? hahaha

Maar in tegenstelling tot hem zal ik wel met een antwoord komen dat jou zal bevredigen.

Geciteerd van: https://en.wikipedia.org/wiki/Genetic_drift

Citaat:
The law of large numbers predicts that when the absolute number of copies of the allele is small (e.g., in small populations), the magnitude of drift on allele frequencies per generation is larger. The magnitude of drift is large enough to overwhelm selection at any allele frequency when the selection coefficient is less than 1 divided by the effective population size. Non-adaptive evolution resulting from the product of mutation and genetic drift is therefore considered to be a consequential mechanism of evolutionary change primarily within small, isolated populations.[28] The mathematics of genetic drift depend on the effective population size, but it is not clear how this is related to the actual number of individuals in a population.[14] Genetic linkage to other genes that are under selection can reduce the effective population size experienced by a neutral allele. With a higher recombination rate, linkage decreases and with it this local effect on effective population size.[29][30] This effect is visible in molecular data as a correlation between local recombination rate and genetic diversity,[31] and negative correlation between gene density and diversity at noncoding DNA regions.[32] Stochasticity associated with linkage to other
Dat staat bij een tekst hoe drift meer invloed dan natuurlijke selectie uitoefent. "With a higher recombination rate". Lees voor jezelf.
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