![]() ![]() their fate is either fertilization, in which case the sperm and ovum form an embryo that develops in the fallopian tubes and then in the uterus. the ova are developed inside the follicles of the ovary and typically the one ovum that matures the most is released from its follicle during ovulation. in humans, the sperm is nourished by the sertoli cells in the testes to ensure that they grow and mature. note that some cells are stuck in a phase of the cell cycle known as G_0, where they do not go through mitosis till reverted back to the G_1 stage.Īs for meiosis, cells are usually nourished so that they grow. an exception is cancerous cells such as with the TP53 mutation, where mitosis keeps going on continuously even if there is insufficient energy/organelles available, often resulting in tumours. scientifically, this is beneficial because of the accumulation of mutations that may potentially be dangerous. ![]() for human somatic cells, mitosis can only occur about 20-50 times before it undergoes apoptosis, a number known as the Hayflick limit. After mitosis, cells go back to the interphase stage of the cell cycle and carry on the cell cycle.
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