CELL DIVISION
MEIOSIS AND GENETIC VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mitosis is preceded by one round of replication; meiosis is preceded by two rounds of replication.
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Mitosis requires two cell division sequences; meiosis requires one cell division sequence.
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Mitosis halves the number of chromosomes present in the cell; meiosis retains the number of chromosomes present in the cell.
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Mitosis produces two cells identical to the parent cell; meiosis produces four cells, each different than the parent cell.
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Detailed explanation-1: -Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Detailed explanation-2: -So, the correct answer is ‘Meiosis II resembles mitosis when sister chromatids split’
Detailed explanation-3: -Mitosis results in two nuclei that are identical to the original nucleus. Meiosis, on the other hand, results in four nuclei, each having half the number of chromosomes of the original cell. In animals, meiosis only occurs in the cells that give rise to the sex cells (gametes), i.e., the egg and the sperm.
Detailed explanation-4: -Mitosis produces genetically identical diploid cells, while meiosis produces genetically different haploid cells.
Detailed explanation-5: -Mitosis is a process where a single cell divides into two identical daughter cells (cell division).