Fill in the blank:

Question

"A single gene causes _____. This results in a lack of clotting proteins in the blood. Clotting proteins are produced in the liver. The lack of clotting proteins can lead to severe bleeding and joint damage."

Answer 1

"A single gene causes hemophilia. This results in a lack of clotting proteins in the blood. Clotting proteins are produced in the liver. The lack of clotting proteins can lead to severe bleeding and joint damage."