What happens when cells get off track? How does this lead in cancer?

When cells get off track, there will be continuous increase in cell divisions and when there is increase, it will lead to increase in cells or cells multiplication occupying a place and cancerous cells developed.

Explanation:

Cancer is as a result of cell divisions and cell growth that is not checked which is as a result of breakdown in some cells processes which regulate the cell cycle and this is as a result in mutations or changes in the DNA sequence of genes code that regulate cell divisions causing increase in cell divisions such as cell cycle arrest or programmed cell death.

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the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.