Multiple Choice
In eukaryotic cells, what molecular system primarily controls progression through the cell cycle at key checkpoints (e.g., G1/S and G2/M)?
4
views
16. Cell Division
Control of the Cell Cycle
Struggling with Cell Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In the control of the cell cycle, how do cyclin-dependent kinases (CDKs) directly promote cell division?
A
By forming active complexes with cyclins that phosphorylate specific target proteins to drive progression through cell-cycle checkpoints
B
By acting as DNA polymerases that replicate chromosomes during S phase
C
By degrading cyclins through ubiquitin ligase activity to permanently shut down cell-cycle transitions
D
By opening nuclear pores to allow chromosomes to enter the nucleus during mitosis
Related Videos
Related Practice
Control of the Cell Cycle practice set
Problem sets built by lead tutorsExpert video explanations