Question

The dominant gene for round red blood cells is S and the recessive gene for sickle-shaped red blood cells is s. Based on their genotypes, which set of parents has the most likely chance of producing a child with sickle-cell disease?

a. SS mother and Ss father
b. Ss mother and SS father
c. Ss mother and Ss father
d. SS mother and SS father

Answer 1

b

Explanation:because the recessive closet to the to the gene that causes is that