Mitosis, Chromosomes & The Cell Cycle


Most cells in the body have a nucleus; The nucleus contains genetic material in the form of chromosomes, coiled up lengths of DNA molecules.

Each chromosome carries a large number of genes, different genes control the development of different characteristics.

Body Cells normally have two copies of each chromosome-one from the mother and one from the father.

There are 23 pairs of chromosomes in a human cell.

Body Cells in multicellular organisms divide to produce new cells as part of a series of stages called the cell cycle. The stage when the cell divides is called mitosis.

Multicellular organisms use mitosis to grow or replace new cells that have been damaged.

The end…


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