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shepuryov [24]
3 years ago
6

The Northern elephant seal went through a severe population decline as a result of hunting in the late 1800s. The population has

rebounded but is now homozygous for nearly every gene studied. This is an example of:________
A) negative assortive mating
B) migration
C) mutation
D) a bottleneck
E) disruptive selection
Biology
1 answer:
Anastasy [175]3 years ago
8 0
<h2>D) is the correct option </h2>

Explanation:            

Northern elephant seal is an example of bottleneck effect

In bottleneck effect the elimination of inferior genotype from a homogeneous gene pool occurs due to the strong natural selection pressure and changing environmental conditions which leads to the genetic drift and only a few most adapted genotype survives and flourish

In case of Northern elephant seal, due to hunting a population decline occurred, environmental conditions changed as a result few genotypes homozygous for every gene is present

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In pea plants, two stem lengths are possible: tall (T) and dwarf (t). Tall is dominant to dwarf. a. In a purebred tall plant, wh
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a. only T gametes

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