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Question

Sex chromosomes of a female bird are represented by:

A
XO
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B
XX
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C
XY
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D
ZZ
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E
ZW
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Solution

The correct option is C ZW
The ZW sex-determining system is a system that determines the sex of offspring in birds, some fishes, crustaceans and some reptiles.
In the ZW system, the ovum determines the sex of the offspring, in contrast to the XY sex-determination system.
According to the ZW sex-determining system, sex chromosomes of the female bird are represented by ZW.
So, the correct answer is option E-'ZW'

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