For people, red hair is a recessive trait. In order for a child to have red hair, what must be true of the parents?
A)One parent must have red hair.
B)Both parents must have red hair.
C)One parent must have a gene for red hair.
D)Both parents must have a gene for red hair.

Question

Quizplus · Accepted Answer

Since red hair is a recessive trait, both parents must carry at least one gene for red hair for their child to potentially have red hair. This does not necessarily mean both parents must display the trait (have red hair themselves), but each must carry the gene.

For People, Red Hair Is a Recessive Trait