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Question

Study this figure and answer the question. What does A represent?
223526_8df07780c2404a849984057e33fa964a.png

A
ZZ
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B
ZW
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C
WW
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D
ZO
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Solution

The correct option is B ZW
Here "A" refers to the female sex chromosomes (ZW). Birds have heteromorphic females (AA+ZW).
Thus, the correct answer is option B.

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