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Question

Assertion :Meiosis-I is called reductional division in which crossing over occur between homologous chromosomes and as end product each cell receives one set of chromosomes. Reason: Meiosis II is same as Mitosis.


A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Meiosis-I is called reductional division in which crossing over occurs between homologous chromosomes and as end product each cell receives one set of chromosomes.
The mechanics of meiosis II is similar to mitosis, except that each dividing cell has only one set of homologous chromosomes. Therefore, each cell has half the number of sister chromatids to separate out as a diploid cell undergoing mitosis.
Hence the correct answer is (B)

Biology

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