Which checkpoint requires a cell to be of adequate size in order to move to the next phase in the cell cycle?
a.) g 1/s checkpoint
b.) g 2 gheckpoint
c.) g 0 checkpoint
d.) m checkpoint

Cell division has two checkpoints namely, G1 checkpoint and spindle assembly checkpoint. The checkpoint which determines if division has properly occurred is the G1 checkpoint. At this point, is a damage in the DNA is detected or the has not reach the optimum size, the cell is stopped in G1 and is not allowed to proceed to further process.

Therefore, the correct answer from the choices is option A.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: