The origin of genetic variation is
A) mutation.
B) gene flow.
C) genetic drift.
D) natural selection.
E) nonrandom mating.
Correct Answer:
Verified
Q140: Genetic variation within a population may be
Q141: Evolution may be constrained by
A) sexual dimorphism.
B)
Q142: Genetic drift affects small populations more than
Q143: Natural selection
A) works directly on the genotype
Q144: Genotype frequencies may be altered by
A) genetic
Q146: Genetic variation is
A) favored by variation in
Q147: A neutral allele
A) is affected by natural
Q148: Which of the following agents of evolution
Q149: Mutations
A) are any change in an organism's
Q150: _ selection operates if individuals within a
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