Question

Which one of the following preceeds reformation of the nuclear envelope during M phase of the cell cycle

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

Answer 1

Answer: (B)

Formation of the contractile ring and formation of the phragmoplast

Answer 2

During the M phase, which is also referred to as the mitotic phase and encompasses cell division, the process of re-establishing the nuclear envelope occurs in a stage known as telophase. Specifically, during telophase, the nuclear membrane that had vanished in prophase is reconstructed. However, before this reconstruction takes place, the nucleus undergoes a reorganization process, involving the decondensation of chromosomes and the reassembly of the nuclear lamina.