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What do you mean by heterogametic & homogametic ? Why are male birds heterogametic ? ​

Answer»

ong>Answer:

Because males have DIFFERENT chromosomes (XY), they are called heterogametic (hetero for different). ... For example, the eggs (OVA) in the female all carry the X chromosome. The sperm can carry either the X or the Y chromosome, so it is the sperm that determines if the offspring is XY (male) or XX (female).

I know only 2nd one



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