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Question

Which of the following symbols are used for representing sex chromosome of birds?

A
ZZ – ZW
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B
XX – XY
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C
XO – XX
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D
ZZ − WW
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Solution

The correct option is A ZZ – ZW
Birds show ZZ-ZW type of sex determination, where male birds are homogametic (ZZ), and female birds are heterogametic (ZW).

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