Question

In our society, women are blamed for producing female children. Choose the correct option for sex determination in humans.
A. Due to some defect like aspermia in man
B. Due to genetic makeup of some particular sperm which fertilizes the egg
C. Due to genetic makeup of the eggs
D. Due to some defect in women

Answer 1

Hint: In the XY sex-determination framework, the female ovum contributes a X chromosome and the male sperm contributes either a X chromosome or a Y chromosome.

Complete Answer:
- The male produces two sorts of sperms - one having hereditary makeup as 22A+X and other one having as 22A+Y.
- Thus, if a sperm consisting of hereditary makeup 22A+X prepares the egg of hereditary makeup 22A+X at that point will bring about the arrangement of zygote having genotype as 22AA+XX which will bring about the female kid.
- While, if a sperm of hereditary makeup 22A+Y treats the egg of hereditary makeup 22A+X at that point will bring about the arrangement of zygote having the hereditary constitution of 22AA+XY, which will bring about the development of the male kid.
- Along these lines, plainly mother is never answerable for the sex of a youngster, the dad decides the sex of a kid.

So, the correct answer is option B.

Note: Men decide the sex of an infant relying upon whether their sperm is conveying a X or Y chromosome. A X chromosome joins with the mother's X chromosome to make a child girl(XX) and a Y chromosome will consolidate with the mother's to make a boy (XY).