1. Volume 128, Issue 4, (February 2007)
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Cell 
Volume 128, Issue 4, (February 2007)
DOI: /j.cell
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2. Artistic representation of different forms of chromatin
Artistic representation of different forms of chromatin. Image courtesy of Daniel Kohn, Kohnworkshop and Bang Wong, Broad Institute.
Cell  , DOI: ( /j.cell )
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3. Calico cats are always female
Calico cats are always female. The orange and black fur color pattern is determined by the random inactivation of one of the X chromosomes. Photo courtesy of Robert Kruger.
Cell  , DOI: ( /j.cell )
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