Related: Tiny Calico Kitten Turned Stunning Queen Is Magazine Cover Material. Another person added, "Don’t think I’ve ever seen a male Calico! So handsome." Someone else respo ...

A prime example of X inactivation is in the coat-color patterning of tortoiseshell or calico cats (Figure 1). In cats, the fur pigmentation gene is X-linked, and depending on which copy of the X ...