Tabby cat or "hypermelanistic" allele, "a", does not. Solid-color (black or blue) cats have the "aa" combination, hiding the tabby pattern, although sometimes a suggestion of the underlying pattern can be seen (called "ghost striping") This pattern is mostly seen in young cats that still have the baby coat. The right pattern (Classic, Mackerel, or Spotted) will reveal itself then, because that is independent of whether it is tabby or solid. However, the agouti gene only controls the production of black pigment, so a cat with an "O" allele for orange color will still have the tabby pattern. As a result, both
Mackerel 21 species in all—18 of those are classified into the genus "Scomberomorus", two into "Grammatorcynus", and a single species into the monotypic genus "Acanthocybium". In addition, a number of species with mackerel-like characteristics in the families Carangidae, Hexagrammidae and Gempylidae are commonly referred to as mackerel. There has been some confusion between the Pacific jack mackerel ("Trachurus symmetricus") and the heavily harvested Chilean jack mackerel ("Trachurus murphyi"). These have been thought at times to be the same species, but are now recognised as separate species. The term "mackerel" is also used as a modifier in the common names of other