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How is Cdk activity blocked by Cdk inhibitor proteins?A.
In addition to phosphorylation and dephosphorylation, the activity of Cdks can also be modulated by the binding of Cdk inhibitor proteins.
B.
The cell-cycle control system uses these inhibitors to block the assembly or activity of certain cyclin–Cdk complexes.
C.
Some Cdk inhibitor proteins, for example, help maintain Cdks in an inactive state during the G 1 phase of the cycle, thus delaying progression into S phase.
D.
Pausing at this transition point in G 1 gives the cell more time to grow, or allows it to wait until extracellular conditions are favorable for division.
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【简答题】全科医生的基本素质有哪些
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A.
便于捕管用力
B.
使耻骨前弯消失
C.
便于通过膜部狭窄
D.
使尿道口放松
E.
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【单选题】Peter, who had been driving all day, suggested at the next town.
A.
to stop
B.
stopping
C.
stop
D.
having stopped
【单选题】Peter, who had been driving all day, suggested _______ at the next town.
A.
to stop
B.
stop
C.
having stopped
D.
stopping
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