NEETBotanyCell Cycle and Cell Division
What happens to the nuclear envelope during Anaphase II in meiosis?
Options
- AIt reappears
- BIt breaks down
- CIt remains unchanged
- DIt becomes elongated
Correct answer
B. It breaks down
Step-by-step solution
Prophase II: Meiosis II is initiated immediately after cytokinesis, usually before the chromosomes have fully elongated. In contrast to meiosis I, meiosis II resembles a normal mitosis. The nuclear membrane disappears by the end of prophase II (Figure 10.4). The chromosomes again become compact. Metaphase II: At this stage the chromosomes align at the equator and the microtubules from opposite poles of the spindle get attached to the kinetochores (Figure 10.4) of sister chromatids. The nuclear envelope disappears d