Chromosomal Abnormalities Aneuploidy and NonDisjunction

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=sg7xe8C9DmQ

NOTE! The label for sister chromatids at 1:30 should say homologous chromosomes ! Sadly, Youtube deleted the annotations feature that had previously corrected the error. Thanks for the viewers who noticed the problem! • Chromosomal problems can easily occur during reproduction. Continuing our discussion of reproduction, this screencast concerns common chromosomal abnormalities, specifically non-disjunction. During nondisjunction, an incorrect number of chromosomes are allocated into the resulting sex cells.

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