cell cycles

Define Nucleoid

the area that DNA is stored in prokaryotic cells

Define plasmid

extrachromosomal circular DNA found in prokaryotes 

Define Binary Fission

the division of a prokaryotic cell, without mitosis

Outline steps of the prokaryotic cell cycle

binary fission; DNA replication, cell elongation and cytokinesis

Outline what happens in interphase

G1, S, G2; cell growth and DNA replication in preparation for mitosis

Outline what happens in prophase (2)

chromosomes become visible, and the nuclear envelope breaks down

Outline what happens in metaphase

spindle fibres attach to the centromeres of each chromosome and line them up down the middle of cell

Outline what happens in anaphase

spindle fibres contract, pulling each sister chromatid to opposite ends

Outline what happens in telophase

chromosomes pack together at opposite ends and new nuclear membranes form, producing two identical nuclei