If red hair requires 2 copies of a gene to show, what type of allele is red hair? A. Recessive

B. Dominant

a. recessive

Explanation:

Usually, If there is a dominant gene allele, you can have just one of a dominant gene and it will still show. Knowing that you needed two copies, the red hair is most likely a recessive allele.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

this is a good question! i'll do some research and come back when i have the answer!