AGB-0049
QUESTION
Inbreeding in a population?
OPTIONS
(A) Reduces variance
(B) Increases heritability
(C) Increases the fitness
(D) Reduces the genetic abnormalities
ANSWER
(A) Reduces variance
EXPLANATION
Inbreeding increases homozygosity and generally reduces genetic variance within an inbred line as alleles become fixed, although it can increase differences among lines. It does not generally increase fitness and may expose deleterious recessive alleles, so the alternatives claiming increased fitness or reduced abnormalities are incorrect.
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