The maleness of a child is determined bya)the X chromosome in the zygoteb)the Y chromosome in zygotec)the cytoplasm of germ cell which determines the sexd)sex is determined by chance

Solution: The egg zygote will develop into a male offspring if sperm with the Y chromosome fertilizes it. The egg zygote will develop into a female child if sperm with the X chromosome fertilizes it. So, the correct answer is (b) the Y chromosome in a zygote.