Which process can best be explained by alleles?
A) The fact that phenotypes produce genotypes
B) The formation of identical twins through the splitting of a fertilized egg
C) The instructions for hair color come from two sources on the chromosome
D) The teratogenic effects associated with fetal alcohol spectrum disorder (FASD)

Question

Quizplus · Accepted Answer

Alleles are different forms of a gene that arise by mutation and are found at the same place on a chromosome. They are responsible for the variation in inherited characteristics, such as hair color, because they provide different instructions for these traits from each parent.

Which Process Can Best Be Explained by Alleles