Meiosis 1 and 2

Meiosis 1 and 2

InterphaseDiploid cell

Prophase IChromosomes condensing

Prophase ISpindle fibres start to form

Prophase ISpindle fibres start to form, chromosomes fully condensed

Prophase IThe chromosomes are crossing over, and exchanging DNA

Prophase IThe nuclear envelope dissolves,

Prophase IThe chromosomes are ready, with a bit of each other’s dna

Prophase IThe chromosomes are ready, with a bit of each other’s dna

Metaphase IThe chromosomes are ready, with a bit of each

other’s DNA. The spindle fibres are ready to attach

Metaphase I

Metaphase IThe spindle fibres have attached to the chromosomes and the

centromeres are about to cleave.

Anaphase Ithe chromosomes have split and are pulling to each end

Anaphase 1, the chromosomes have moved to each end, Cytokinesis is

beggining

Anaphase I is almost over and Cytokinesis is almost done

Telophase I, the nuclear envelope reforms, and the chromosomes start dissolving.

Telophase I, the nuclear envelope is complete, the chromosomes will dissolve soon

Telophase I, the nuclear envelope is complete, the chromosomes will dissolve soon

Telophase I, the nuclear envelope is complete, the chromosomes will dissolve soon. The Chromosomes will build their sister

chromatids, and the cell will prepare to split

Interkenesis, the cells rest, and produces proteins.

Interkenesis

Interkenesis

Interkenesis

Prophase IIthe nuclear membrane dissolves again, but there is no sharing of

dna this time

Prophase IIthe nuclear membrane dissolves again, but there is no sharing of

dna this time

Metaphase II, the chromosomes have aligned themselves.

Metaphase II, the chromosomes are aligned

Metaphase II, but the lower cell is going through Anaphase II, the chromosomes are moving to each end of the cell

Anaphase II, the chromosomes are moving to each end of the cell

Anaphase II, the chromosomes are moving to each end of the cell

Anaphase II, with cytokinesis beginning

Telophase II, the cell’s nuclear membrane is reforming, and the chromosomes are dissolving

Cytokinesis and Telophase II complete, 4 haploid cells are now ready.