Which of the following options gives the correct sequence of events during mitosis?

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Condensation → crossing over → nuclear membrane disassembly → segregation → telophase

Condensation → nuclear membrane disassembly → arrangement at equator → centromere division → separation of chromatids → telophase

Condensation→ segregation → arrangement at the equator → centromere division →telophase

Condensation → nuclear membrane disassembly → crossing over → segregation → telophase

answer is A.

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Detailed Solution

The correct sequence of events during mitosis is condensation of chromosomes – nuclear membrane disassembly (prophase) – arrangement of chromosomes at the equator (metaphase) – division of centromere – segregation of sister chromatids (anaphase) – telophase.
(2), (3) and (4) are incorrect sequences.

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