Multiple Choice
Based on the text's description of the function of retinoic acid, a deficiency in retinoic acid during development may lead to what types of problems?
A) abnormalities in formation of caudal regions of the nervous system
B) impaired neural crest cell migration
C) cells that become skin rather than neural tissue
D) all of the above
Correct Answer:

Verified
Correct Answer:
Verified
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