bio question

[skim1988]

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Where does cleavage of the egg begin in humans?

The answer is oviduct/fallopian tube. I thought cleavage began when the fertilized egg gets implanted on the wall of the uterus. Help plz!

 

[PooyaH]

Nope, you're at the blastula phase when it attaches to the endometrium of the uterus. Cleavage starts right after fertilization occurs in the oviduct: Blastomere -> Morula -> Blastula -> Gastrula

 

[Demps]

Nope, you're at the blastula phase when it attaches to the endometrium of the uterus. Cleavage starts right after fertilization occurs in the oviduct: Blastomere -> Morula -> Blastula -> Gastrula

He is correct. cleavage begins as soon as fertilization takes place and it will be in blastula phase by the time implantation takes place

 

[skim1988]

thnx guys