New Alleles Arise By

Question

New alleles arise by
A) nonrandom mating.
B) allele frequency.
C) genetic drift.
D) mutation.

Accepted Answer

New alleles arise through mutations, which are random changes in an organism's DNA sequence. Nonrandom mating and allele frequency are both related to how existing alleles are distributed in a population, while genetic drift refers to random fluctuations in allele frequencies in small populations.