Question

"Sex chromosomes in human males and females are XY and XX respectively. Statistical probability of getting either a male or a female child is 50%." Justify this statement giving reason.​

Answer 1

Step-by-step explanation:

If a Y bearing sperm fertilizes the egg, the zygote will be a male (XY) and when X bearing sperm fertilizes the egg, the resulting zygote will be female (XX). Since the ratio of the X chromosome and the Y chromosome in a male gamete is 50:50. The statistical probability of male or female infants is also 50:50.