Question

the cell cycle refers to the life of the cell, it includes mitosis, plus interphase which has its own phases. g1 = growth s = dna synthesis g2 = growth and preparation for mitosis read the callouts at the checkpoints in the image. based on that, suggest a definition of explanation for what a checkpoint is:

Explanation:

Checkpoints in the cell - cycle are control mechanisms that ensure the cell has completed all necessary processes and that conditions are favorable before proceeding to the next stage. For example, at the G1 checkpoint, the cell checks if the environment is favorable for growth and DNA synthesis. At the G2 checkpoint, it verifies if all DNA is replicated and damage is repaired before entering mitosis. And during mitosis, the M - checkpoint ensures all chromosomes are properly attached to the mitotic spindle.

Answer:

Checkpoints in the cell cycle are regulatory points that monitor the cell's progress and environmental conditions to determine if it is safe to proceed to the next phase of the cell cycle.