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प्रश्न
Which pair of sex chromosome will determine a male?
विकल्प
XO
XX
XY
YY
MCQ
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उत्तर
XY
Explanation:
Women have a perfect pair of sex chromosomes, both called X. But men have a mismatched pair in which one is a normal-sized X while the other is a short one called Y. So women are XX, while men are XY.
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