gene pools and genetic equilibrium

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11 Terms

1
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What is a group of individuals that can interbreed and produce fertile offspring?

species

2
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Define allele frequency.

How often a gene occurs in a population

3
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Most of the individuals in a population are represented by the middle of a bell curve because
they have the ________ trait

average

4
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What is the total genetic information in a population?

gene pool

5
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Which of the factors that affect gene pools can be caused by migration of individuals in or out of the population?

gene flow

6
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Which of the factors that affect gene pools is bad for small populations because it may lead to a loss of variation and alleles becoming 'fixed"?

genetic drift

7
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The story of achromatopsia on the small island of Pingelap is an example of which 2 types of genetic drift?

bottleneck and founder effect

8
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If a specific trait is desirable in a mate and selected over others, how will that affect allele frequency of that trait in the population?

it will increase it

9
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which individuals help maintain genetic variation in a population (by keeping hidden recessive alleles)?

heterozygous individuals

10
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List the 5 conditions of genetic equilibrium where genotype frequencies will stay the same.

  1. no genetic drift

  2. no gene flow

  3. no mutations

  4. no sexual selection

  5. no natural selection

11
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According to Hardy-Weinberg Genetic Equilibrium, what will happen to the population if just one of these conditions above is not met?

it will change/evolve