The probability of a baby being a boy or a girl depends on the contribution of the
Answer Details
The probability of a baby being a boy or a girl depends on the contribution of the father's sex cell. The father's sex cell, also known as the sperm cell, contains either an X or a Y chromosome. If a sperm cell carrying an X chromosome fertilizes the mother's egg, the resulting baby will be female (XX). If a sperm cell carrying a Y chromosome fertilizes the egg, the resulting baby will be male (XY). Therefore, the sex of the baby is determined by the contribution of the father's sex cell.