New alleles arise by
A)mutation.
B)migration.
C)genetic drift.
D)random mating.
E)independent assortment.

Question

Quizplus · Accepted Answer

New alleles arise by mutation, which is a random change in the DNA sequence of a gene. This can be caused by a variety of factors, including errors in DNA replication, exposure to chemicals or radiation, and the insertion or deletion of DNA segments. Migration, genetic drift, random mating, and independent assortment can all affect the frequency of existing alleles within a population, but they do not create new alleles.

New Alleles Arise by