The major signaling molecules produced by the midbrain/hindbrain signaling center (isthmic organizer) are __________________.
A) Sonic hedgehog/Hoxa-1
B) Bone morphogenetic protein-4/En-1
C) Fibroblast growth factor-8/Wnt-1
D) Sonic hedgehog/En-1
E) Wnt-1/bone morphogenetic protein-4
Correct Answer:
Verified
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Q18: The cardiogenic plate arises from _.
A)Embryonic endoderm
B)Somatic
Q19: Where in the embryo can you find
Q21: Somites arise from _.
A)Somatopleure
B)Paraxial mesoderm
C)Splanchnopleure
D)Intermediate mesoderm
E)None of
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A)Splanchnic mesoderm
Q23: In the elongating spinal cord of the
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