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Question

Which one of the following precedes re-formation of the nuclear envelope during M-phase of the cell cycle?

A
Decondensation from chromosome and reassembly of the nuclear lamina
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B
Transcription from chromosome and reassembly of the nuclear lamina
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C
Formation of the contractile ring and formation of the phragmoplast
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D
Formation of the contractile ring and transcription from chromosomes
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Solution

The correct option is C Decondensation from chromosome and reassembly of the nuclear lamina
M phase is known as mitotic phase and cell division occurs in this phase. The re-formation of the nuclear envelope during M-phase of the cell cycle takes place during telophase. The nuclear membrane which disappears during propahse reappears in the telophase. But before it is reformed the nucleus gets reorganised by decondensation from chromosome and reassembly of the nuclear lamina.
So, the correct answer is option A.

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