Comments on: Male tortoiseshell cat ‘genetically impossible’ http://ayleshamcattery.com.au/male-tortoiseshell-cat-genetically-impossible/ Wed, 01 Sep 2010 04:45:46 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: rhonda http://ayleshamcattery.com.au/male-tortoiseshell-cat-genetically-impossible/comment-page-1/#comment-58 rhonda Sat, 09 Jan 2010 08:01:33 +0000 http://ayleshamcattery.com.au/?p=338#comment-58 The information I have about "male" tortoiseshell cats is that what appears to be male is actually an XXY individual (a male with an extra X chromosome) and therefore although appearing male, is actually sterile. The other possibility is a "chimera"- a fusion of two embryos. The information I have about “male” tortoiseshell cats is that what appears to be male is actually an XXY individual (a male with an extra X chromosome) and therefore although appearing male, is actually sterile. The other possibility is a “chimera”- a fusion of two embryos.

]]>