Why Is Bound GTP Considered a "Clock

question 25

Multiple Choice

Why is bound GTP considered a "clock"?

• A) It behaves in specific time intervals.
• B) GTP is exchanged for GDP after binding to adenylate cyclase.
• C) The Gɑ receptors have intrinsic GTPase activity, hydrolyzing GTP to GDP and Pi.
• D) All of the above.
• E) None of the above.

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