Question

What regulates the cell growth cycle?

Answer 1

External influences, such as growth factors, play a large role in carrying the cell past the G1 checkpoint. ... This transition, as with all of the major checkpoint transitions in the cell cycle, is signaled by cyclins and cyclin dependent kinases (CDKs). Cyclins are cell-signaling molecules that regulate the cell cycle.

Answer 2

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External influences such as growth factors play a large role in carrying the cell past the G1 Checkpoint.This transition, with all of the major checkpoint transitions in the cell cycle, is signaled by cyclins and cyclin dependent kinases (CDKs). Cyclins are cells-signallings molecules that regulates the cell cycle.