Women have a more strong immune system than men- and that is the reason the mortality rate of a female child is less than a male child. This is because most of the immune related genes are located on the X chromosome and because women have two X chromosomes, their immune system is considered stronger.

Women have a more strong immune system than men- and that is the reason the mortality rate of a female child is less than a male child. This is because most of the immune related genes are located on the X chromosome and because women have two X chromosomes, their immune system is considered stronger.