Assertion :Statement : Non-disjunction results in the production of abnormal gametes.
Reason: Reason : Non-disjunction is the failure of paired chromosomes to segregate during the metaphase of meiotic divisions of gametogenesis.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is C Assertion is correct but Reason is incorrect.
Meiosis is a process that takes place in one diploid cell. These diploid cells further divide into four haploid cells called gametes. Sometimes either homologous chromosomes or sister chromatids fail to separate properly during meiosis. This is called nondisjunction. In nondisjunction, gametes are produced with an abnormal number of chromosomes. Nondisjunction in meiosis I occur during anaphase I when one pair of homologous chromosomes fails to separate.
So, the correct answer is option C.

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Q. Assertion :Nondisjunction is the failure of paired chromosomes to segregate during the Anaphase of meiotic division of gametogenesis. Reason: Non-disjunction results in production of abnormal gametes.

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Assertion :Statement : Non-disjunction results in the production of abnormal gametes. Reason: Reason : Non-disjunction is the failure of paired chromosomes to segregate during the metaphase of meiotic divisions of gametogenesis.

Assertion :Statement : Non-disjunction results in the production of abnormal gametes.
Reason: Reason : Non-disjunction is the failure of paired chromosomes to segregate during the metaphase of meiotic divisions of gametogenesis.