As inbreeding progresses, proportion of heterozygote will?

AGB-0017

QUESTION

As inbreeding progresses, proportion of heterozygote will?

OPTIONS

(A) Increase
(B) Decrease
(C) Both
(D) None

ANSWER

(B) Decrease

EXPLANATION

As inbreeding increases, homozygosity rises and heterozygosity declines because related individuals are more likely to carry identical alleles that become homozygous in their offspring. Thus the proportion of heterozygotes decreases, while the proportion of homozygotes increases.

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