Modeling Mitosis

Stage 1 – Interphase

The chromosomes begin to duplicate and become two identical chromatins joined at the centromere.

 

Stage 2 – Mitosis – Early Prophase

In the nucleus the chromosomes condense and in the cytoplasm, spindle fibers form.

Stage 2 – Mitosis – Late Prophase

The nuclear membrane breaks apart and the spindle fibers start to attach to the chromosomes.

Stage 2 – Mitosis – Metaphase

After the spindle fibers attach to the chromosomes and the chromosomes line up in the middle of the cell.

Stage 2 – Mitosis – Anaphase

the spindle fibers shorten and the centromere divides so that each chromosome becomes two separate chromatins.

Stage 2 – Mitosis – Telophase

The nuclear membrane forms around each set of chromosomes, chromosomes spread back out into new nucleus and the spindle fibers break down.

Stage 3 – Cytokinesis

The cell membrane separates into two separate cells that are exactly the same.