Question

URGENT PLEASE

!!!!!!!!!!!!!!!!!!!!!!!!!
Bill and Jenny have three children. One of their children has cystic fibrosis, which is a recessive disorder (cc). Neither of the parents has the disorder. PLEASE EXPLAIN EVERYTHING THEY ARE ASKING NEED 100%



Part A: Explain how it is genetically possible that one of their children has cystic fibrosis. (3 points)




Part B: What are the odds that each child produced by Bill and Jenny could have cystic fibrosis? (1 point)

Answer 1

Part A: It is possible that one of their children has cystic fibrosis because although neither of the parents has the disorder, both of them could still be carriers.

Part B: There is a 25% chance that one of their children has cystic fibrosis.

Step-by-step explanation:

Part B: Draw a Punnett square to confirm. Cross Cc and Cc. You should get CC, Cc, Cc, and cc.