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
Option A) In humans and several other species of animals, the father determines the sex of the child. In the XY sex-determination system, the female-provided ovum contributes an X chromosome and the male-provided sperm contributes either an X chromosome or a Y chromosome, resulting in female (XX) or male (XY) offspring, respectively.
