Stages in Mitosis

Mitosis

The function of mitosis is to increase the number of cells that are genetically identical to the parent cell.

Mitosis occurs during growth,asexual reproduction and tissue repair.

Interphase - when a cell is not dividing

•  Newly formed cell increases in size
• Produces organelles, e.g. mitochondria.
• The amount of DNA is doubled.
• all ATP made for mitosis.
• Choromosomes replicate
• Each chromosome consistes of two chromotids joined together by the centromere.
• Chromosomes are not visable because the chromatin is dispersed throughout the nucleus.

Prophase

• The chromosomes condense (shorten and become thicker) and become visable as long thin threads.
• In celles where centrioles are present the centrioles divide and move to opposite ends of the cells.
• Protein microtubules form from each centriole and the spindle developes, extending from pole…