Question

How is sex determined of a foetus?

Answer 1

Baby sex is determined by the male parent. If the x chromosone fuses with an x chromosone then the baby will be a girl and when y chromosone fuses with an x chromosone then the child will be a boy..

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Answer 2

Explanation:

1. The sex of a foetus is determined by the chromosome pair which it gets.
2. The ovum has 1 X chromosome.
3. The sperm may have 1 X or 1 Y chromosome.
4. Male have a chromosome pair of XY.
5. Females have chromosome pair of XX.
6. When sperm with Y chromosome fertilizes the ovum, then the chromosome pair is XY which develops into a male.
7. When sperm with X chromosome fertilizes the ovum, the chronosome pair is XX which developes into a female.

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