NEETBotanyCell Cycle and Cell Division
What are the key events that occur during anaphase stage?
Options
- AChromosomes are moved to spindle equator and get aligned along metaphase plate
- BCentromeres split and chromatids separate, Chromatids move to opposite poles
- CSpindle fibres attach to kinetochores of chromosomes, Chromosomes are aligned along metaphase plate
- DChromosomes move towards the same pole, Spindle fibres attach to centromeres
Correct answer
B. Centromeres split and chromatids separate, Chromatids move to opposite poles
Step-by-step solution
At the onset of anaphase, each chromosome arranged at the metaphase plate is split simultaneously and the two daughter chromatids, now referred to as daughter chromosomes of the future daughter nuclei, begin their migration towards the two opposite poles. each chromosome moves away from the equatorial plate, the centromere of each chromosome remains directed towards the pole and hence at the leading edge, with the arms of the chromosome trailing behind. Thus, anaphase stage is characterised by the following key eve