Final answer:
Two parents with normal skin and hair color that are both heterozygous for the albinism trait (Aa) have a 25% chance of having an albino child, as albinism is a recessive genetic condition. So the correct option is A.
Step-by-step explanation:
Two parents with normal skin and hair color could have an albino child if both parents carry one normal allele and one allele for albinism, which is a recessive condition. The correct option is:
A. Dad would have to be Aa Mom would have to be Aa
In this scenario, each parent has a genotype of Aa, which means they have one dominant allele (A) that gives them normal pigmentation and one recessive allele (a) for albinism. When both parents are heterozygous (Aa), there is a 25% chance that their child will receive the recessive allele from each parent (aa), resulting in albinism. This follows Mendelian inheritance patterns and a simple Punnett square can be used to predict the phenotypic ratio of the offspring in such a monohybrid cross.