Question

Who is responsible of sex
determination in human child?

with full explanation​

Answer 1

Answer:

The male is responsible for s ex determination in human child the male has two type of chromosomes. (X,Y) . And a female has one type of chomosome (X).If the mother's X chrosomes combines with Y chromosome(XY) the baby is birthes boy and if the mother's X chromosome combine with the X chomosome of the father ( XX) the baby is borned female.

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Answer 2

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Human beings have 46 chromosome in the nuclei of their cells.of these 44 and known as auto Jones and the last pair is term as the sex chromosomes.point point this last pair is different in males and females in males it is XY and in females it is XX. The gametes ( ovum & sperm ) have half the as that of cells occurring elsewhere in the body. This means that an egg will always have ( 22 + X ) chromosomes while a sperm will have either ( 22+ X ) or ( 22 + Y ) chromosomes.

During fertilisation, if an egg fuses with a ( 22 + Y ) sperm, the resultant zygote will develop into a male child ; if an egg fuses with a ( 22 + X ) sperm, the resultant zygote will develop into a female child. After understanding this, can you now analyse, which of the two, the father, or the mother is responsible for determining the sex of the child. So , the father is responsible for determining it's a baby girl or baby boy.

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