MITOSIS AND INTERPHASE

G1

Cell grows and makes a new set of organelles and proteins for the daughter cells

S

Cellular DNA is replicated and the 2 daughter cells get 1 set of DNA

G2

Cell growth continues and there is synthesis of special proteins in preparation for mitosis

Prophase (1)

Nuclear envelope breaks down, nucleolus disappears leaving free floating chromosomes in cytoplasm

Prophase (2)

Chromosomes coil tighter and centrioles move to opposite poles of the cell and spindle fibres form between the centrioles

Metaphase

Chromosomes line up in the middle of the cell and are attached to the spindle by the centromere

Anaphase

Chromosomes break into 2 chromatids and separate at the centromere

The spindles then contract and pull the chromatids to each pole of the cell

Telophase (1)

The chromatids at each pole unravel and become chromosomes

Nuclear envelopes form around the chromosomes, forming 2 nuclei

Telophase (2)

The cytoplasm splits via cytokinesis, forming 2 daughter cells that are identical to each other and the original cell