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  4. Assertion Reduction division occurs in anaphase-I. So there is no need of meiosis. Reason Meiosis-II occurs to separate homologous chromosomes.

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Q. Assertion Reduction division occurs in anaphase-I. So there is no need of meiosis. Reason Meiosis-II occurs to separate homologous chromosomes.

VMMC MedicalVMMC Medical 2009

Solution:

Anaphase-I involves separation of homologous chromosomes into different daughter cells. So, meiosis I is a reductional division. But each chromosome is still formed of two sister chromatids joined at the common centromere. Anaphase-I results in reduction in number of chromosomes but each chromosome has double amount of DNA, so, meiosis-II occurs, during, which chromatids of each chromosome separate into different cells. Main aim of meiosis II is to separate genetically modified chromatids of each homologous chromosome formed during crossing over in meiosis-I.