Since a horse has two copies of each chromosome ... in Syntaxin 17 determines speed of greying and melanoma incidence in Grey horses, Nature Communications (2024). DOI: 10.1038 ...

it does make a horse more prone to developing melanomas -; a type of skin cancer that has a well-established connection with ...

Your Horse reported on several significant ... More than 80% of grey horses will have at least one melanoma during their lifetime, but horses of all colours can develop them.