Question

assuming that the probability of having a female child is 50% and having male child is 50% what is the probability of couple's first born child being female and second male​

Answer 1

Answer:

50%because of probability

Answer 2

Justification of statement is as follows

• Sex determination depends upon the presence of sex chromosomes. There exists two types of sex chromosomes namely X and Y chromosome.

• Females carry XX sex chromosomes while males carry XY chromosome. X chromosome from father results in girl child while Y chromosome from father results in boy child.

• Hence, their exists 50% chance of fertilization of X carrying ovum(from mother), by sperm carrying X or Y chromosome(from father). Thus, the given statement is justified.