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Assertion XX-XY mechanism of sex determinatio occurs in human beings.Reason:In human, the X-chromosome is longer than Y-chromosom.A. Both Assertion and reason are true and the reason is a correct explanation of the AssertionB. both Assertion and Reason are true and the Reason is not the correct explanation of the AssertionC. Assertion is true, but the Reason is falseD. Assertion is false, but the reason is true |
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Answer» Correct Answer - B vi. XX-XY mechanism of sex determination occurs in human being as wellas Drosophila. In this, XX zygotes become females, while XY become male. The size of X and Y-chromosomes is not similar, X is longer than Y-chromosome. |
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