All EXCEPT which of the following events shuffles existing alleles into different combinations in sexually reproducing organisms?
A) changes in chromosome number
B) mutation
C) independent assortment of chromosomes
D) crossing over
E) fertilization

Question

Quizplus · Accepted Answer

Mutation is the only event listed that can introduce new alleles into a sexually reproducing organism's gene pool. The other events (changes in chromosome number, independent assortment of chromosomes, crossing over, and fertilization) all shuffle existing alleles into different combinations, rather than introducing new ones.

All EXCEPT Which of the Following Events Shuffles Existing Alleles