Question: what are tabby cats mixed with?
Answer: The most common tabby pattern is mackerel and its Tm allele at the tabby gene locus is dominant over the classic (or blotched) allele, Tb. So a cat with a TmTm or TmTb genotype sets the basic pattern of thin stripes (mackerel tabby) that underlies the coat, while a TbTb cat will express a classic tabby coat pattern ...