Solved

Semaphorin Receptors (Called Plexins) Promote Growth Cone Collapse Via the Small

Question 3

Multiple Choice

Semaphorin receptors (called plexins) promote growth cone collapse via the small GTPase RhoA. How is this most likely to be accomplished?

A) Activation of a RhoA GAP
B) Activation of a RhoA GEF
C) Inhibition of a RhoA GEF
D) Phosphorylation of RhoA
E) Ubiquitinylation of RhoA

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