The number of allele pairs that assort independently in an organism is generally much higher than the number of chromosome pairs.This phenomenon is due to
A)independent assortment.
B)segregation.
C)crossing over.
D)sex-linkage.
E)chromosome inactivation.

Question

Quizplus · Accepted Answer

Crossing over, which occurs during prophase I of meiosis, increases genetic variation by exchanging DNA between homologous chromosomes. This process can create new combinations of alleles on a chromosome, effectively increasing the number of allele pairs that can assort independently beyond the number of chromosome pairs.

The Number of Allele Pairs That Assort Independently in an Organism