NEETBotanyCell Cycle and Cell Division
What is the main event of the prophase stage?
Options
- AChromosomal material becomes tangled
- BCentrosome move towards opposite poles of the cell
- CChromosomal material becomes untangled
- DThe new DNA molecules formed become distinct
Correct answer
C. Chromosomal material becomes untangled
Step-by-step solution
Prophase which is the first stage of karyokinesis of mitosis follows the S and G2 phases of interphase. In the S and G2 phases the new DNA molecules formed are not distinct but intertwined. Prophase is marked by the initiation of condensation of chromosomal material. The chromosomal material becomes untangled during the process of chromatin condensation. The centrosome, which had undergone duplication during S phase of interphase, now begins to move towards opposite poles of the cell.