Question: Twins are born. One is a boy and one is a girl. Which statement is correct about their genetic makeup?

  Options: 
 A. The boy and girl inherit genetic material from the father only.
 B. The boy and girl inherit genetic material from the mother only.
 C. The boy and girl inherit genetic material from both parents.
 D. The boy inherits genetic material from the father only and the girl inherits it from the mother only.
Answer: C