Orange and tortoiseshell house cats (torties) have long been an enigma for hair coloration in mammals: now, the genetic basis ...

For all other animals, including redheaded humans, we know what causes this characteristic color ... this generates a tricolor cat, commonly known as a calico. Each calico is unique, as the ...

Both tortoiseshell and calico fall into this category. They are not actual breeds of cats but rather are ways to describe the ...

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 ...