If Laurie has albinism but neither of her parents exhibits this inherited condition,the trait must be __________ and Laurie's genotype for this trait is _________.

Question

Quizplus · Accepted Answer

Albinism is a recessive trait, meaning that an individual must inherit two copies of the mutated gene (one from each parent) to express the trait. Since neither of Laurie's parents exhibit albinism, it is likely that they are both carriers of the mutated gene, but do not express the trait. Laurie's genotype must be homozygous recessive (aa) to exhibit the trait, as she must have inherited two copies of the mutated gene from her parents.

If Laurie Has Albinism but Neither of Her Parents Exhibits