Mitosis

Interphase: the stage in which cells carry out the functions necessary for survival and cells that divide prepare for reproduction.

 

 

 

 

 

 Early Prophase: the replicated chromosomes coil up into X-shape ones and become visible under a microscope. The nucleolus will disappear, and the nuclear membrane will begin to break down.

 

 

Late Prophase: the spindle fibres complete forming and the chromosomes attach to spindle fibres, which are structures made of protein. They attach to the spindle fibres at their centromeres. The nuclear membrane also disappears.

 

 

Metaphase: the tugging action of the spindle fibres pulls the X-shaped chromosomes into a line across the equator of the cell.

 

 

 

Anaphase: the spindle fibres begin to shorten. The action pulls the centromere apart and the sister chromatids to move to opposite poles of the cell. Once they separate, each sister chromatid is now called a chromosome.

 

 

Telophase: 1 complete set of chromosomes is now at each pole of the cell. The spindle fibres start disappearing and a nuclear membrane forms around each set of chromosomes. A nucleolus appears in each nucleus. Now there are two nuclei in one cell, and the cell is ready to divide.

 

Cytokinesis: it’s the final stage of the cell cycle where the two nuclei are separated into two daughter cells. These new cells are identical to the original parent cell.