Question

A zygote which has inherited an X chromosome from the father will develop into :

(a) baby boy (b) baby girl (c) adult (d) either boy or girl

Answer 1

(b) baby girl

A baby’s sex is determined at the time of conception. When the baby is conceived, a chromosome from the sperm cell, either X or Y, fuses with the X chromosome in the egg cell, determining whether the baby will be female (XX) or male (XY)To be female, one needs to be (XX), whereas to be a male, (XY) is needed. It is the Y chromosome that is essential for the development of the male reproductive organs, and with no Y chromosome, an embryo will develop into a female