The chorion frondosum develops from the ___________ layer of the chorion.
A) cytotrophoblast
B) yolk sac
C) syncytiotrophoblast
D) amnion
Correct Answer:
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Q122: A fertilized egg is called a(n)
A)zygote.
B)blastocyst.
C)morula.
D)embryo.
Q123: The calcium wave that prevents polyspermy also
Q124: Nidation is the process of the blastocyst
Q125: Ova are fertilized in the
A)cervix.
B)fallopian tubes.
C)uterus.
D)vagina.
Q126: The progressive fusion of the acrosomal membrane
Q128: What is a noninvasive method of determining
Q129: The ability of a cell to give
Q130: The possibility that nuclear transplantation from one
Q131: The last embryonic tissue layer to form
Q132: What process occurs as the zygote travels
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