NEETBotanyCell Cycle and Cell Division
What is the characteristic event of prophase?
Options
- AChromosomal material becomes untangled
- BChromosomal material condenses to form compact mitotic chromosomes
- CCentrosome begins to move towards the same pole of the cell
- DThe formation of mitotic apparatus
Correct answer
B. Chromosomal material condenses to form compact mitotic chromosomes
Step-by-step solution
The completion of prophase can thus be marked by the following characteristic events: Chromosomal material condenses to form compact mitotic chromosomes. Chromosomes are seen to be composed of two chromatids attached together at the centromere. Centrosome which had undergone duplication during interphase, begins to move towards opposite poles of the cell. Each centrosome radiates out microtubules called asters. The two asters together with spindle fibres forms mitotic apparatus.