Sujatha 's in -laws worried for having daughter in her second delivery. How will you make them agree that she is not all responsible for hafing daughter?

Explanation

1. Sujatha is not responsible for giving birth to female child. Men are responsible for the birth of male/ female child.
2. Each human cell contains 23 pairs of chromosomes. Out of 23 pairs , 22 pairs of chromosomes are autosomes.
3. The remaining pair is called allosomes or sex chromosomes. these are two types, one is 'X' and the other is 'Y' . These two chromosomes determine the sex of individual.
4. Females have two 'X' chromosomes in their cells (XX). Males have one 'X' and one 'Y' chromosome in their cells(XY).
5. All the gametes produced by woman have only 'X' chromosomes. the gametes produced by a man are of two types one with X chromosome.
6. if the sperm carries 'Y' chromosome and fertilizes the ovum(X) chromosome) . then the aby will have 'XY' condition. So the baby will be a boy.