Why Almost Every Ginger Cat Is Male and Every Calico Is Female: Coat Colour Genetics Explained
The gene that decides orange is on the X chromosomeThe orange coat colour in cats is controlled by a gene called O (for orange), located on the X chromosome. This gene determines whether a cat produces orange-red pigment (phaeomelanin) or black-brown pigment (eumelanin). Because it sits on the X chromosome…
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