what is the casual factor of mitosis?

Answer 1

Whoa....What a huge question! Causal not casual!

The direct answer: The cell-cycle control system is a complex assembly of oscillating protein kinase activities. -see source below

Mitosis being the replication of non-germ-line cells, ie body cells, does not have one causal factor.Cells must respond to the signals for differentiation (simple to complex function, eg in organ development) and they differ depending the circumstances, eg embryo development very different to development of immune cells from the bone marrow. Think of wound repair -Skin cells respond to their sudden lack of neighbours but can you imagine the mess if blood cells responded to the lack of neighbour contact and started dividing? It's a horse for courses concept - different cell types, different causal factors.

Cancer - the lack of control of cell cycle causing cells to go into mitosis. If we knew everything about the causal factors of mitosis we would probably know how to stop cancer perhaps from starting in the first place.

Answer 2

Factor? Well not sure how to answer that. But the actual process of the cell cycle is interfase, mitosis, and cytokinesis. Interfase: cell grows to mature size, replicates dna, 99% of cell cycle, and prepares for cell division, Mitosis: Prophase, Metaphase, Anaphase, Telephase. Prophase: Nuclear membrane breaks down, chromosomes form from dna.Metaphase: chromosomes line up at the middle by the spindle fibers that are connected at the centrioles. Anaphase: Chromosomes split into chromatids and they are being pulled by the spindle fibers at the end of the cell. Telephase: Cell pinches and stretches out. Cytokineses: Cell is pulled apart and two daughter cells are formed.

Answer 3

Reduction of telomere length has been postulated to be a casual factor in cellular aging.
Im going to have to say a causal factor of mitosis is an abnormal mutation of the dividing cells.