Introduction of previously nonexistent genes into a population may be accomplished by
A)nonrandom mating.
B)mutation.
C)sexual recombination.
D)the founder effect.
E)changes in chromosome structure.

Question

Quizplus · Accepted Answer

The introduction of previously nonexistent genes into a population can occur through mutation, which is a random and spontaneous alteration of DNA sequences. This can result in the creation of new genes that did not previously exist in the population. Nonrandom mating, sexual recombination, the founder effect, and changes in chromosome structure can all play a role in altering the frequency of existing genes within a population, but they do not introduce completely new genes.

Introduction of Previously Nonexistent Genes into a Population May Be