User contributions for 130097114

A user with 3 edits. Account created on 7 November 2013.
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13 October 2014

28 November 2013

  • 19:3519:35, 28 November 2013 diff hist +1,028 N Trisomys Created page with "Trisomy, an additional copy of a chromosome, is caused by nondisjunction; two homologous chromosomes migrate to the same pole rather than to the opposite pole.  This can occ..."