Question

How does diploidy help to preserve genetic variation?

Answer 1

Answer:

By propagating both, Dominant and recessive alleles.

Explanation:

During evolution, only dominant traits transfer up to the next generation due to their better adoption in the environment but diploidy helps in hetrozygous arrangement of allele (A a) that contain both the dominant and recessive alleles. As a result, the genetic variations of both alleles gets preserved.