Answer to Question #279048 in Genetics for Daniel

Question

In humans, albinism is inherited as a recessive trait. Two normally pigmented

parents had an albino child. What is the probability (or percentage) of this couple

having another child with albinism?

Answer 1

Autosomal recessive inheritance

This means a child has to get 2 copies of the gene that causes albinism (1 from each parent) to have the condition. If both parents carry the gene, there's a 1 in 4 chance that their child will have albinism and a 1 in 2 chance that their child will be a carrier.