Any blastomere removed from an eight-cell mammalian embryo can develop into a normal late-stage embryo. This finding supports the idea that
A) only the zygote is totipotent.
B) the progressive restriction of potency hypothesis applies.
C) the first cleavage event must be transverse to the animal-vegetal axis of the zygote.
D) cell divisions producing the earliest blastomeres do not result in an asymmetrical distribution of cytoplasmic determinants.
E) there is no organizer in mammals.
Answer: D) cell divisions producing the earliest blastomeres do not result in an asymmetrical distribution of cytoplasmic determinants.
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