Multiple Choice
In early vertebrate embryonic development, a number of pathways, such as Wnt, Hedgehog, and Notch, regulate differentiation and organ formation. They operate by___________ .
A) establishing anterior- posterior and dorsal- ventral symmetry
B) regulating the expression of MADS box genes
C) cell signaling mediated by receptor binding
D) transcription activation due to interaction among transcription factors
E) repressing translation of developmental RNAs
Correct Answer:

Verified
Correct Answer:
Verified
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