Melanocytes from orange cats were found to make 13 times as much RNA from the gene Arhgap36. The gene is located on the X ...

The work also explains why tortoiseshell and calico cats tend to be females Gayoung Lee The genetic basis for orange cats' coloration has long been unknown to scientists. oxygen via Getty Images ...

Tortoiseshell cats have a brindling pattern (mixture) of orange and non-orange hairs throughout the coat, with some areas mostly orange or non-orange. Calico cats have distinct patches of orange ...

However, 48 of these variants also appear in some breeds that don’t have orange or calico fur, so they can’t be linked to orange fur color. This allowed Barsh’s team to narrow it down to ...

Almost every breed of cat has the potential to fall into the calico category. The term basically means that they are tricolor ...

Male cats with orange coats, as well as the orange spots of calico cats, carry a mutation in this gene that blocks the production of eumelanin and allows the production of pheomelanin. These two ...

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Calico is a pattern, not a breed, so calico cats can come in different shapes ... for a colorful name that references their ...

And, after scanning a database of 188 cat genomes. Barsh’s team found that every orange, tortoiseshell, and calico cats had the same mutation. Meanwhile, another study led by developmental ...