Biology · Cell Biology
Match the cell cycle regulatory proteins listed in Column I with their known functions in Column II: Cell Cycle Regulatory Protein Function A. Cdk-activating kinase (CAK) (i) Suppresses G1/S-Cdk and S-Cdk activation in G1; helps cells withdraw from cell cycle when they terminally differentiate; phosphorylation by Cdk2 triggers its ubiquitylation by SCF. B. Wee1 kinase (ii) Suppresses G1/S-Cdk and S-Cdk activities following DNA damage. C. p27 (mammals) (iii) Phosphorylates inhibitory sites in Cdks; primarily involved in suppressing Cdk1 activity before mitosis. D. p21 (mammals) (iv) Phosphorylates an activating site in Cdks. Which one of the following options represents the correct match?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A - (i), B - (ii), C - (iii), D - (iv)
- 2A - (ii), B - (iii), C - (i), D - (iii)
- 3A - (iii), B - (ii), C - (iv), D - (i)
- 4A - (iv), B - (iii), C - (i), D - (ii)✓
Correct answer
A - (iv), B - (iii), C - (i), D - (ii)
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