g1 s g2 mitosis cytokinesis: new protein and organelles made dna replicates proteins needed for cell...
TRANSCRIPT
G1
S
G2
mitosis
Cytokinesis:
new protein and organelles made
DNA replicates
Proteins needed for cell division made
Nucleus divides
cytoplasm divides
The cell cycle
growth
Subject to copyright clearance a suitable image showing mitosis could be inserted here.
e.g. one similar to that found at:
http://www.microscopy-uk.org.uk/mag/imgaug99/whole.jpg
Cell at interphase•Protein synthesis
•Organelle synthesis•DNA replication
Subject to copyright clearance a suitable image showing interphase could be inserted here.
e.g. one similar to that found at:
http://www.fed.cuhk.edu.hk/~johnson/photomicrographs/mitosis/animal/animal_interphase.htm
A single chromosome at the beginning of mitosis
Has two chromatids
as the DNA replicates during interphase before mitosis
centromere
Early prophase
DNA coils and condensesChromosomes take up stain
centrioles
nucleolus
Centrioles move apart
Nucleolus fades
Chromosomes continue to condense
Nuclear membrane breaks down
prophase
Nucleolus disappears Chromosomes continue to condense
metaphase
Nuclear membrane broken down
Chromosomes aligned on the equator
Each chromosome attached to spindle fibre by the centromere
Centromeres divide and chromatids pulled apart
Anaphase
Anaphase
anaphase
AnaphaseSister chromatids are pulled to opposite poles of the cell
Subject to copyright clearance a suitable set of images showing the various stages of mitosis could be inserted here.