It seems likely that the nucleus arose because

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    there may have been a need for orderly partitioning of the DNA as the genome size increased.
     a prokaryote cell may have become resident in the progenitor eukaryote, and given rise to the nucleus.
     development of the nucleus may have facilitated partitioning of the DNA into multiple chromosomes.
     all of the above.
     more than one of the above, but not all.
asked May 16, 2012 in Microbiology by anonymous
    

1 Answer

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more than one of the above, but not all.
answered May 17, 2012 by Bioshare ~Top Expert~ (34,070 points)

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