I have a soft spot in my heart for mama cats. After all I adopted my own beloved cat soon after she gave birth in a friend’s ...

But, to Caruso, this is just how Kitty always looked. "Her colors have always been there; she is the so-called 'calico' cat," she said. "I already knew this type of cat hair. I often see it around ...

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 ...

Calico cats represent an enchanting mixture of orange, black, and white. Calicos appear as females due to the X chromosome gene effect. Tri-color effect is observed due to X-inactivation when one ...