In multicellular organisms, somatic (body) cells undergo mitosis to provide new cells for growth or to replace cells that have been damaged and died.
Why does mitosis occur in human body cells?
The purpose of mitosis is cell regeneration and replacement, growth and asexual reproduction. Mitosis is the basis of the development of a multicellular body from a single cell. Cells of the skin and digestive tract are continuously sloughed off and replaced by new ones due to mitotic division.
Does mitosis happen in the body cells?
Cell division by mitosis occurs in all human body cells except the gonads (sex cells). During mitosis, the DNA is exactly copied and a new daughter cell created with the same number of chromosomes as the parent cell, ie 46.
Where does mitosis occur in body?
Mitosis occurs in the cells for growth and for repair and replacement of the damaged and dead cells. Mitosis occurs actively in the bone marrow and skin cells to replace cells, which have a limited lifespan.
Which two purposes does mitosis serve in humans?
The two main purposes of mitosis are contributing to tissue growth and contributing to tissue repair.
Where does mitosis occur in the cell cycle?
Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.
Why does the human body need mitosis and meiosis?
Explanation: Mitosis is used to grow new tissues an repair the wounded ones. Meiosis is used to produce gametes which eventually fuse together to make zygote that will develop into a new individual.