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What are the four evolutionary forces that have the ability to change the allele frequencies of a gene

pool? Identify which forces tend to add, or remove genetic variation from the population?

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Beverley Smith
Beverley SmithLv2
29 Sep 2019

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Related questions

I need this in 15 min!Please help!!!1

A gene in a population of sexually reproducing organisms with the following genotype frequencies is at Hardy-Weinberg Equilibrium: BB 100, Bb 800, bb 100

A) true B)false C) can not be determined

Which of the following evolutionary forces would be the best explanation for the genotype frequencies in the population in the above question?

A) genetic drift B) there are no evolutionary forces acting on this gene population C)assortive mating D) Overdominance E)Directional selection

If a population is at Hardy-Weinberg equilibrium, which of the following allele frequencies would yield the smallest number of heterozygotes? A)

A=0.25, B=0.75 B) A=0.75, B=0.25

C)A=0.50, B=0.50

D)A=0.10, B=0.90

Fixation occurs when one allele becomes the only allele for a gene in a population, meaning that all other alleles for that gene have been lost. True or false

1)If you are studying how gene sequences among closely-related species evolved, what type of sampling design would you use? Explain why.

2)If you are studying how population allele frequencies and genotype frequencies were shaped by evolutionary forces, what type of sampling design would you use? Explain why.

3)If you are studying how allele frequencies or genotype frequencies within groups in a population differ, or trying to reconstruct family relationships, what type of sampling design would you use? Explain why.

1. How does the frequency of p in the continent population influence the allele frequencies of the island population when holding migration rate constant?

2. what happens to variation in allele frequencies between populations when migration is occurring?

3.What happens to overall genetic variation under a model that includes genetic drift?

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