The gene for red hair is a recessive gene. Luke has red hair, but neither of his biological parents has red hair. Given this information, we can reasonably guess that:

Question

Quizplus · Accepted Answer

Since red hair is a recessive trait, Luke must have inherited one red-hair gene from each parent. For him to express this trait, both of his parents must be carriers of the gene, meaning each has one red-hair gene and one non-red-hair gene.

The Gene for Red Hair Is a Recessive Gene