

McqMate
Q. |
What determines the sex of a child? |
A. | Chromosomes of the father |
B. | Chromosomes of the mother |
C. | Rh factor of the parents |
D. | Blood group of the father |
Answer» A. Chromosomes of the father | |
Explanation: In humans and several other species of animals, the father determines the sex of the child. In the XV sex-determination system, the female-provided ovum contributes an X chromosome and the maleprovided sperm contributes either an X chromosome or a Y chromosome, resulting in female (XX) or male (XY) offspring, respectively. |
View all MCQs in
Biology (GK)No comments yet