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 ...
It’s a question I’ve always wanted the answer to.” For decades, ginger, tortoiseshell, and calico cats have fascinated scientists. In most mammals, humans included, red hair is caused by ...
Every noticed how most orange cats are male, while females with some orange fur often have patchworks of different colors, such as the calico or tortoiseshell patterns. “It’s been a genetic my ...