Which of the following is false about cyclin-cdk complexes? Cdk’s do not have to
ID: 168410 • Letter: W
Question
Which of the following is false about cyclin-cdk complexes?
Cdk’s do not have to bind to cyclin proteins for complex to be active.
Cdk/cyclin complexes phosphorylates proteins required to trigger next cell cycle phase.
Cyclin concentrations increase gradually, but cdk must be phosphorylated by specific kinase for complex to be active
Process acts as molecular brakes to ensure cell is ready to continue with cell cycle.
A.Cdk’s do not have to bind to cyclin proteins for complex to be active.
B.Cdk/cyclin complexes phosphorylates proteins required to trigger next cell cycle phase.
C.Cyclin concentrations increase gradually, but cdk must be phosphorylated by specific kinase for complex to be active
D.Process acts as molecular brakes to ensure cell is ready to continue with cell cycle.
Explanation / Answer
For cdk's to become active, they need to bind with cyclins. So, option A is False.