Multiple Choice
G proteins are activated when GDP is
A) phosphorylated to GTP while bound to the α-subunit.
B) dephosphorylated to GDP while bound to the α-subunit.
C) exchanged for the GTP that is bound to the α-subunit.
D) exchanged for the GDP that is bound to the α-subunit.
E) exchanged for the GDP that is bound to the βγ-subunit.
Correct Answer:

Verified
Correct Answer:
Verified
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