Question

The following statements refer to cyclins: I. Cyclins protein levels are constant throughout the cell cycle, but activity varies with the phase of the cell cycle. II. Cyclins have measurable enzymatic activity that oscillates with the cell cycle. III. Cyclins are ubiquitinated and degraded at specific phases of the cell cycle. IV. Cyclins bind to Cdks. V. Cyclins are G proteins. Which of these statements are true?

Answer 1

I believe that 1, 4 and 5 are the correct ones.

Step-by-step explanation: