Illustration production of sperm cells
TESE can be used when obstructive azoospermia is blocking sperm cells from getting into the ejaculate. Making artificial gametes could introduce new permutations into how we reproduce.


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The cell cycle, mitosis and meiosis







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At that point, your ovaries can develop and release a mature egg, an ovum , through a process each month called ovulation. Twin pregnancies happen either when two fertilized eggs attaches to the uterus simultaneously dizygotic twins.



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Description: It's like a protective shield that clamps down over the egg at the exact moment that first sperm is safely inside.

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