How can the Hardy-Weinberg principle of genetic equilibrium be used to determine whether this population is evolving?

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Hubert KochLv2

28 Sep 2019

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How can evolutionary biologists use Hardy-Weinberg equilibrium while studying populations of organisms that they suspect may be evolving?

a Scientists can tell a population is evolving if the allele frequencies change.

b Scientists can tell a population is evolving if the genotype frequencies are constant.

c Scientists can tell a population is evolving if the frequencies of homozygous dominant and homozygous recessive individuals are not equal.

d Scientists can tell a population is evolving if the frequencies of homozygous dominant and homozygous recessive individuals are equal.

orchiddolphin216

1 Explain at least 3 ways that selection can preserve genetic variation.

2 Explain how selection affects differently: dominant vs recessive traits; homozygotes vs heterozygotes; and when frequency-dependence is a factor.

3 What is the source of genetic variation? How does meiosis contribute to maintenance of genetic diversity?

4Describe the preconditions for natural selection to operate and what the results of natural selection will be.

5 Use the HW equations to solve simple population genetics problems with and without selection.

6 Hardy-Weinberg equilibrium tells us the conditions under which populations will not evolve. So what types of things may lead to a population evolving? How do these things lead to populations evolving (gene frequencies changing)?

7 When is genetic drift the strongest?

In light of the fact that the assumptions of the Hardy-Weinberg principle are unrealistic (no mutation, no selection, etc.), how can the principle be useful to population geneticists?

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How can the Hardy-Weinberg principle of genetic equilibrium be used to determine whether this population is evolving?

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