Is Melanism a Genetic Disorder?

This rare genetic disorder is characterized by the development of macules with Hyperpigmentation on the lips and oral mucosa (melanosis), as well as benign polyps in the gastrointestinal tract.

Is melanism a genetic mutation?

To summarise, melanism can be due to mutations of the extension gene resulting in variation in MC1R, or mutations of the agouti gene resulting in variation in ASIP. Genetic studies in domesticated bird species, however, have identified many different genes which can cause different forms of melanism.

Is melanism rarer than albinism?

It differs from albinism, which is a lack of melanin. ... Melanism is more common than all of these other strange color variations except albinism.