Powerpoint mitosis 1

Have your body changed in the pass six months? Tall/Weight

Wound – how does your body repair itself?

Mitosis Definition: To create two identical daughter cells that are genetically identical to the parent cells

Q: What kind of cells would perform mitosis? A: Somatic cells (all body cells except gamete cells)

Acronym for MITOSIS IPMAT (C) Interphase Prophase Metaphase Anaphase Telophase (Cytokinesis)

IPMAT (C)  IPMAN © Interphase Prophase Metaphase Anaphase Telophase (Cytokinesis)

Chromosome in Mitosis Homologous chromosome and sister chromatids

Anaphase Centromere splits and homologus chromosomes go to opposite poles of cell

It involves synthesis of new organelles (G1), replication of chromosome (S) and synthesis of proteins necessary for mitosis (G2).

Chromosomes appears as thread-like structures called chromatin.,[object Object]

Paired centrioles (centrosomes) move opposite ends of the cell

Asters (short microtubules radiating from centrioles) form,[object Object]

Each centromere attaches itself to the spindle fibre

At the end of metaphase, the centromeres divide.,[object Object]

Anaphase is completed when chromosomes arrive at the poles,[object Object]

The spindle fibres disappear and centrioles replicate

Nuclear membrane re-forms around chromosomes and the nucleolus reappears in each nucleus

Telophase may lead straight into cytokinesis,[object Object]

Cytokinesis in animal and plant cells are different

CLEAVAGE FURROW (division furrow),[object Object]

Recommended