Question

A woman who has a recessive gene for sickle cell anemia marries a man who also has a recessive gene for sickle cell anemia. Their first child is born with sickle cell anemia. The chance that their second child will develop this disease is ______.

Answer 1

25%

Step-by-step explanation:

If both parents have dominant recessive genes there is a 25% chance a child will have sickle cell anemia.