Checkpoints occur between the stages of the cell cycle. if a cell does not meet certain criteria at the end of a stage, it will not move to the next stage. which of these occurs just before the cell enters the g2 stage of the cell cycle.

f / the nuclear membrane disintegrates.
g / dna replicates.
h / centrioles form.
j / the nucleolus divides.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .