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Question : What is male heterogamety? Explain sex determination in humans.

Answer»

Solution :In human SEX determination is XX-XY type. MALES are heterogametic because they produce two types of SPERMS, ie., `50%` gametes carrying X chromosome and `50%` of gametes carrying Y - chromosome.
Females are homogametic and produce X type of eggs. During fertilization, if egg fuses with x sperm, it DEVELOPS into female offspring.
If egg fuses with sperm carrying Y chromosomes, it develops, into male offspring.


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