Cleavage in human embryos _______,whereas cleavage in frog embryos _______.
A) is incomplete;is complete
B) involves formation of an epiblast;involves formation of a trophoblast
C) involves late expression of the embryo's genome;involves early expression of the embryo's genome
D) involves early segregation of cells that will not contribute to the embryo;does not involve early segregation of cells that will not contribute to the embryo
E) is spiral;is radial
Correct Answer:
Verified
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A) when
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A) is located on the outside
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A) forms
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Q40: Which feature(s)characterize(s)gastrulation in both birds and frogs?
A)
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