Multiple Choice
If a vertebrate embryo develops an enlarged posterior nervous system and little or no forebrain, what may have happened in development?
A) The embryo was over-exposed to fibroblast growth factor.
B) The embryo was over-exposed to retinoic acid.
C) The embryo was under-exposed to fibroblast growth factor.
D) The embryo was under-exposed to BMP.
Correct Answer:
Verified
Correct Answer:
Verified
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