Meiosis
- 2. Prophase I
Chromatin (DNA and protein)
coils tightly together to form
Chromosomes.
- 4. Prophase I
Homologous Chromosomes become
closely associated and exchange
segments by crossing over.
- 5. Metaphase I
Nuclear membrane
disappears and spindle
fibers are formed.
- 6. Metaphase I
Spindle fibers attach to the
centromeres as the pairs of
Chromosomes line up along the
metaphase plate (midline of the cell).
- 7. Anaphase I
The Spindle Fibers pull the pairs
of Chromosomes away from
the midline.
- 8. Anaphase I
Each side of the cell ends up
with a complete set of
Chromosomes.
- 9. Telophase I
Cytokinesis occurs and a
nuclear membrane
appears.
- 10. Prophase II
Cytokinesis occurs and a
nuclear membrane
appears.
- 11. Metaphase II
Spindle fibers attach to
both sides of the
Centromeres.
- 12. Anaphase II
Spindle fibers contract and
pull the sister Chromatids
to opposite sides.
- 13. Telophase II
Cytokinesis occurs and
nuclear membranes form.
- 14. Telophase II
Cytokinesis occurs and
nuclear membranes form.