Question

Why are grasshopper and Drosophila said to show male heterogamety? Explain.

Answer 1

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Here is your answer dear-------

Grasshopper and Drosophila are said to show male heterogamety because their male show heterozygosity in sexual chromosomes. That is why they are known as to show heterogamety male.
For example:------
Male Grasshopper have XO Sex chromosome, thus shows heterozygous condition.

Hope it will help you!
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Answer 2

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Heterogamety means different sex gametes. Male heterogamety includes human males having XY sex chromosomes and males of some insects, such as grasshopper and bugs, having XO sex chromosomes. Female heterogamety includes females of some species of birds, fishes and insects.