Question

Draw a neat, labelled diagram of an animal cell showing the Prophase stage of Mitosis with four chromosomes.

Hint:

In prophase, chromosomes become visible, and the nuclear membrane begins to break down. This is essential for the cell to proceed to the next stages of mitosis.

Answer 1

Step 1: Describe the Prophase stage. 
Prophase is the first stage of mitosis where the chromatin condenses into visible chromosomes, the nuclear membrane begins to break down, and the spindle fibers start to form. In an animal cell, the centrioles move to opposite poles of the cell.

Step 2: Key features in Prophase. 
- Chromosomes are visible as two chromatids joined at the centromere.
- The nuclear membrane starts to disintegrate.
- The spindle fibers begin to form and extend from the centrioles.

Step 3: Label the diagram. 
In the diagram, four chromosomes should be clearly visible, and labels should indicate the centromere, chromatid, nuclear membrane, spindle fibers, and centrioles.