genetic drift an evolutionary factor affecting all populations can have a signif
ID: 80978 • Letter: G
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genetic drift an evolutionary factor affecting all populations can have a significant effect in a small populations even though its effect is negligible in large populations Part A Why is that the case?oblem 22.6 neto drift, an evolutionary factor affecting all populations, can have a significant effect in small populations, even though its effect is negligible in large populations A Why is this the case? O In a small population there is higher mating competition, so a bigger part of the population migrates to find mates and so causes genetic drift. In a small population there is a much smaller gene pool than in a large population, so an allele has more chances of being eliminated by another allele. O In a small population each individual contributes significanty to a population's gene pool, so nonnandom mating has a more significant effect. O In a small population there is a greater chance of inbreeding, which is the main cause of genetic drift, so it occurs more frequently. Submit My Answers give up incorrect; one attempt remaining; Try Again
Explanation / Answer
The correct answer is option (c)
In a small population each individual contributes significanty to a population's gene pool, so nonnandom mating has a more significant effect.
Genetic drift is defined as the change in alleleic frequencies due to the randomness of inheritance from one generation to other. Population size has an effect on allele frequency. In a smaller population the effect of genetic drift is larger compared to larger population. Founder effect and bottleneck effect are related to the genetic drift.
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