Multiple Choice
The protein Sonic Hedgehog (SHH) plays a role in specifying the identity of digits (such as fingers and toes) in mammals.Several digits arise directly from cells that both express and respond to secreted SHH.What type of signaling would this be considered?
A) Direct contact
B) Paracrine
C) Endocrine
D) Synaptic
E) Autocrine
Correct Answer:

Verified
Correct Answer:
Verified
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