What determines if twins are identical?
A B C D
their genes their behavior their environment their personalities
Question: What determines if twins are identical?
(A) their genes
(B) their behavior
(C) their environment
(D) their personalities

Answer: (A) their genes
Answer: (D) their personalities
Question: What determines if twins are identical?
(A) their genes
(B) their behavior
(C) their environment
(D) their personalities
Answer: (A) their genes