Respuesta :

If a cell is unable to progress beyond the G1 phase it is a likely indicator that the cell was unable to reach to an appropriate size and lacked nutrients and growth factors.

What are cell cycle checkpoints?

  • Cell cycle checkpoints are various mechanisms which control the progression of cell from one stage of the cycle to next.
  • G1 checkpoint is located at the end of G1 and progression to S phase. It checks whether the cell has grown to a specific size and has accumulated nutrients and growth factors.
  • It is also an indicator that the environment is not appropriate for cell division.
  • G2 checkpoint is present at the transition from G2 to M phase. It checks whether the DNA has replicated properly or is there any damage in the DNA.
  • M checkpoint is for transition from Metaphase to Anaphase. It checks whether the chromosomes have properly attached to the spindle fibers at the metaphase plate.

Learn more about cell cycle checkpoints here:

https://brainly.com/question/2128300

#SPJ4

ACCESS MORE