What percentage of their genes do dizygotic twins have in common?
A.	100%
B.	70 to 90%
C.	40 to 60%
D.	10 to 30%
Answer:C
What percentage of their genes do dizygotic twins have in common?
A.	100% B.	70 to 90% C.	40 to 60% D.	10 to 30%