Question

WHY did the nuclear membrane disappear?


So that the chromosomes can coil up


So that the DNA can duplicate itself


So that the chromosomes can move around the cell


So that the cell can grow

Answer 1

The nuclear membrane disappears during cell division, specifically during prophase of mitosis (and also during prophase I of meiosis). The correct reason for this is:

**So that the chromosomes can move around the cell.**

The breakdown of the nuclear membrane allows the spindle fibers to access the chromosomes, facilitating their movement to opposite poles of the cell, which is essential for proper segregation during cell division.