Fate mapping studies of neural crest cell migration have been carried out in chicks,quails,and mice.These studies have shown that the neural crest cells that populate the second pharyngeal arch arise from which level(s) of the brain?
A) Midbrain only
B) Midbrain and rhombomere 1
C) Rhombomeres 1 and 2
D) Rhombomere 4
E) Rhombomeres 5 and 6
Correct Answer:
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