A) Decondensation from chromosome and reassembly of the nuclear lamina
B) Transcription from chromosomes and reassembly of the nuclear lamina
C) Formation of the contractile ring and formation of the phragmoplast
D) Formation of the contractile ring and transcription from chromosomes
Correct Answer: A
Solution :
At telophase stage, nuclear membrane vesicles associate with the surface of individual chromosome and fuse to reform the nuclear membranes, which partially enclose a cluster of chromosomes before coalescing to reform the complete nuclear envelope. During this process, the nuclear pores reassemble and reassociate to form the nuclear lamina. One of the lamina protein (lamina-B) remains with the nuclear membrane fragments throughout mitosis and may help nuclear reassembly. After the nucleus reforms, the pores pump in nuclear proteins, the chromosomes decondense and RNA synthesis resumes, causing the nucleolus to reappear. Thus, option [a] is correct.
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