LABORATORY REVIEW
MITOSIS AND MEIOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Random fertilization
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Independent assortment
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Crossing over and Recombination
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Centromerization
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Detailed explanation-1: -During meiosis, homologous chromosomes (1 from each parent) pair along their lengths. The chromosomes cross over at points called chiasma. At each chiasma, the chromosomes break and rejoin, trading some of their genes. This recombination results in genetic variation.
Detailed explanation-2: -Final answer: The stage of meiosis that involves the division of centromere is anaphase II.
Detailed explanation-3: –Besides that, the pairing of non-homologous chromosomes is never involved in Meiosis and no recombination happens between them. Thus, the correct answer is option (C) Meiosis involves pairing of non-homologous chromosomes and recombination between them.
Detailed explanation-4: -Specifically, meiosis creates new combinations of genetic material in each of the four daughter cells. These new combinations result from the exchange of DNA between paired chromosomes.