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Understanding mitosis and meiosis

chromosomes become enclosed by the nuclear envelope
Cytokenesis - two cells are formed with two sets of chromosomes in each one
Prophase II - DNA replication is skipped and the two cell's nuclear envelope are dissolved and the spindle reformed
& the four chromatids in each cell are connected together to form two chromosomes
Metaphase II - the two chromosomes line up in the center


Anaphase II - the two chromosomes are split up into their daughter chromatids and moved towards opposites poles
Telophase II - the nuclear envelope is reformed around the two poles on each cell.
Cytokenesis - the cells are split up again and four haploid cells remain as a result
& meiosis is now complete

Mitosis

Interphase - begins with a diploid cell
Prophase - four chromatids combine to form two chromosomes linked by a centromere
Metaphase - the two chromosomes line up in the center
Anaphase - the two chromosomes split up into four chromatids which move to both of the poles
Telophase - the two sets of chromatids are enclosed by the nuclear envelope
Cytokenesis - two cells are created with two chromatids in each one.
& mitosis is now complete.



Bibliography:

http://e n.wikipedia.org/wiki/Cell_divi sion
http://nobelprize.org/nobe l_prizes/medicine/laureates/20 01/press.html
http://en.wikiped ia.org/wiki/Mitosis
http://libr ary.thinkquest.org/C004535/mit osis_vs_meiosis.html
http://www .vcbio.science.ru.nl/en/virtua llessons/cellcycle/mitomeio/

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Understanding mitosis and meiosis

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