What are the three stages of the cell cycle?

G1 phase. Metabolic changes prepare the cell for division. At a certain point - the restriction point - the cell is committed to division and moves into the S phase.S phase. DNA synthesis replicates the genetic material. Each chromosome now consists of two sister chromatids.G2 phase. Metabolic changes assemble the cytoplasmic materials necessary for mitosis and cytokinesis.M phase. A nuclear division (mitosis) followed by a cell division (cytokinesis).

The period between mitotic divisions - that is, G1, S and G2 - is known as interphase.

In cells with a nucleus, as in eukaryotes, the cell cycle is also divided into three periods: interphase, the mitotic (M) phase, and cytokinesis. During interphase, the cell grows, accumulating nutrients needed for mitosis, preparing it for cell division and duplicating its DNA.

The punnett square is the device used to predict genetics.