Several: First the egg is fertilized by the sperm and there should be an embryo with genetic material from the sperm and from the eggs (only 2 total sets). The the egg usually divides into 4 cells then 8 cells. The many more cells divide and the genes inside the embryo become activated. The middle of the embryo clears out and a blastocyst forms and when advanced starts to hatch out of its shell.
Answered 11/16/2020
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Typical stages: Typical stages are zygote, embryo, morula, then blastocyst. I hope thus helps! www.Ivfmd.Com.
Answered 11/2/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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