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Cell Cycle and Cell Division question

2017 · Q40
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Cell Cycle and Cell Division question

2017 · Q40

NEETBiologyCell Cycle and Cell DivisionMCQ+4 / −1
Which of the following options gives the correct sequence of events during mitosis?
  1. A
    Condensation →\to→   Nuclear membrane disassembly →\to→ Arrangement at equator →\to→ Centromere division →\to→ Segregation →\to→ Telophase
  2. B
    Condensation →\to→ Crossing over →\to→ Nuclear membrane disassembly →\to→ Segregation →\to→ Telophase
  3. C
    Condensation →\to→ Arrangement at equator →\to→ Centromere division →\to→ Segregation →\to→ Telophase
  4. D
    Condensation →\to→ Nuclear membrane disassembly →\to→ Crossing over →\to→ Segregation →\to→ Telophase
View written solutionFree

Correct answer: A

(a) The correct sequence of events occur during mitosis would be as follows
(i) DNA condensation occurs so that chromosomes become visible during early to mid-prophase.
(ii) Disassembly of nuclear membrane begins at late prophase or transition to metaphase.
(iii) Chromosomes align at equator during metaphase.
(iv) Centromere division occurs during anaphase forming daughter chromosomes.
(v) During anaphase segregation also occurs in which daughter chromosomes separate and move to opposite poles.
(vi) Telophase finally leads to formation of two daughter nuclei.

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