NEET 2004
- Exam
- NEET
- Year
- 2004
- Subject
- Botany
- Chapter
- Cell Cycle and Cell Division
NEET 2004 · Botany · Cell Cycle and Cell Division
Which one of the following precedes reformation of the nuclear...
Which one of the following precedes reformation of the nuclear envelope during phase of the cell cycle?
Options
- Adecondensation from chromosomes, and reassembly of the nuclear lamina
- Btranscription from chromosomes, and reassembly of the nuclear lamina.
- Cformation of the contractile ring, and formation of the phragmoplast
- Dformation of the contractile ring, and transcription from chromosomes.
Correct answer
A. decondensation from chromosomes, and reassembly of the nuclear lamina
Step-by-step solution
The re-formatoin of the nuclear envelope during M-phase of the cell cycletakes place during telophase.
The nuclear membrane which disappears during prophase reappears in the telophase. But before it is reformed the nucleus gets reorganised by decondensation from chromosome and reassembly of the nuclear lamina.
Related Theory
Crossing over occurs between prophase I and metaphase I (pachylene stage) and is the process where two homologous non-sister chromatids pair up with each other and exchange different segments of genetic material to form two recombinant chromosome sister chromatids.