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Meiosis 1 and 2

Meiosis 1 and 2

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Page 1: Meiosis 1 and 2

Meiosis 1 and 2

Page 2: Meiosis 1 and 2

InterphaseDiploid cell

Page 3: Meiosis 1 and 2

Prophase IChromosomes condensing

Page 4: Meiosis 1 and 2

Prophase ISpindle fibres start to form

Page 5: Meiosis 1 and 2

Prophase ISpindle fibres start to form, chromosomes fully condensed

Page 6: Meiosis 1 and 2

Prophase IThe chromosomes are crossing over, and exchanging DNA

Page 7: Meiosis 1 and 2

Prophase IThe nuclear envelope dissolves,

Page 8: Meiosis 1 and 2

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

Page 9: Meiosis 1 and 2

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

Page 10: Meiosis 1 and 2

Metaphase IThe chromosomes are ready, with a bit of each

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

Page 11: Meiosis 1 and 2

Metaphase I

Page 12: Meiosis 1 and 2

Metaphase IThe spindle fibres have attached to the chromosomes and the

centromeres are about to cleave.

Page 13: Meiosis 1 and 2

Anaphase Ithe chromosomes have split and are pulling to each end

Page 14: Meiosis 1 and 2

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

beggining

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Anaphase I is almost over and Cytokinesis is almost done

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

Page 17: Meiosis 1 and 2

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

Page 18: Meiosis 1 and 2

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

Page 19: Meiosis 1 and 2

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

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Interkenesis, the cells rest, and produces proteins.

Page 21: Meiosis 1 and 2

Interkenesis

Page 22: Meiosis 1 and 2

Interkenesis

Page 23: Meiosis 1 and 2

Interkenesis

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

dna this time

Page 25: Meiosis 1 and 2

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

dna this time

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Metaphase II, the chromosomes have aligned themselves.

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Metaphase II, the chromosomes are aligned

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

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

Page 30: Meiosis 1 and 2

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

Page 31: Meiosis 1 and 2

Anaphase II, with cytokinesis beginning

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

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