Write notes on: Sex determination in unborn baby. ?????????????

Write notes on:
         Sex determination in unborn baby. ?????????????


1 Answers

Harshit Singh
askIITians Faculty 5963 Points
2 years ago
Dear Student

Sex determination in unborn baby: The sex of unborn baby is determined by the sex chromosomes. An unfertilized egg always has X chromosomes. Sperms are of two types. One contains X chromosomes and the other contains Y chromosomes. If sperm contributes a Y chromosome to the egg at fertilisation, the zygote would develope into male child. If a sperm containing X chromosome fertilises the egg, the zygote would develop into a female.


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