Bob is color blind, but he knows that neither of his parents were color blind. He is wondering if he received the gene for color blindness from his mother, his father, or both of his parents.
A. That his parents aren't his parents because of his genes don't support that idea.
B. His mom was Heterozygous for colorblindness.
C. His dad was homozygous recessive for colorblindness.
D. His mom was homozygous recessive for colorblindness.