Which of the following statements is false?
An activating phosphatase removes all phosphates from mitotic $C d k$ so that it will be active.
Phosphorylation of mitotic Cdk by the inhibitory kinase makes the Cdk inactive, even if it has been phosphorylated by the activating kinase.

Mitotic Cdk must be phosphorylated by an activating kinase before it is active.
Active M - Cdk phosphorylates an activating phosphatase in a positive feedback loop.

Question

Which of the following statements is false?
An activating phosphatase removes all phosphates from mitotic $C d k$ so that it will be active.
Phosphorylation of mitotic Cdk by the inhibitory kinase makes the Cdk inactive, even if it has been phosphorylated by the activating kinase.

Mitotic Cdk must be phosphorylated by an activating kinase before it is active.
Active M - Cdk phosphorylates an activating phosphatase in a positive feedback loop.

Accepted Answer

***A*** ∻Key Concept∻ ⚹Activation of mitotic Cdk⚹ ∻Explanation∻ ⚹An activating phosphatase removes specific inhibitory phosphates from mitotic $Cdk$, not all phosphates, to activate it.⚹◊What role does phosphorylation play in the regulation of mitotic Cdk activity?⍭ Generate me a similar question◊

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