Answer:
C- the child must have inherited the gene from both parents.
Explanation:
Both parents could carry the trait and have no symptoms, but both parents passed it down to their child causing the child to have sickle cell anemia.
Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.
I think it is phytic acid.