Multiple Choice
The cell cycle stages follow one another in a normal sequence due to the correct ______.
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16. Cell Division
Control of the Cell Cycle
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In eukaryotic cells, what molecular system primarily controls progression through the cell cycle at key checkpoints (e.g., G1/S and G2/M)?
A
Cyclin-dependent kinases (CDKs) activated by binding specific cyclins
B
Ribosomes increasing global protein synthesis to trigger phase transitions
C
Aquaporin channels regulating water flux to signal entry into mitosis
D
Telomerase activity directly initiating checkpoint passage by elongating telomeres each cycle
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