The calico cat aspect (tri-color orange, black, and white patches) comes from X-chromosome inactivation, known as lyonization. Since coat color in cats is carried on the X chromosome, and females ...

Calico cats are among the most distinctive and beloved felines in the world, instantly recognizable by their beautiful ...

(Mainichi/Mai Suganuma) A team of Japanese scientists has discovered the gene that determines the fur color of calico cats, which are characterized by their white, black and orange (brown ...

either an orange or black coat color results. X inactivation only occurs in cells with multiple X chromosomes, which explains why almost all calico cats are female. X inactivation exists in two ...