No.
If you check out the related links below, you will see that they are both unique in their own ways.
Yes, the purebred Brumese cat can have a tortoiseshell coat.
By breeding it with a lion.
Tortoiseshell, Tortoiseshell and White, Bi-colour or Calico
Tortoiseshell cats should be fed a balanced diet that includes high-quality commercial cat food to ensure they receive the necessary nutrients. It is important to consult with a veterinarian to determine the best diet and feeding schedule for your specific tortoiseshell cat. Additionally, fresh water should always be available for them to drink.
Generally, the skin color of the domestic cat is similar to the fur color at that spot. If you shave a tortoiseshell cat, she will still be tortoiseshell colored.
Tortoiseshell
Generally, the skin color of the domestic cat is similar to the fur color at that spot. If you shave a tortoiseshell cat, she will still be tortoiseshell colored.
only if it cant see
Tortoiseshell
A calico and tortoiseshell cat can appear in the same breed. Neither type of cats refer to specific breed, instead speaks of a coat pattern found on a cat.
Cats with the Tabby coat pattern are incredibly common. The majority of moggies have some variation of the Tabby pattern, so it is safe to say there are far more Tabby cats than tigers in the world.
The gray cat is Graypaw (Graystripe) and the 'tortoiseshell' is actually ginger, Rusty/Firepaw/Fireheart/Firestar. He appears tortoiseshell because of the trees letting small patches of light through so patches of fur appear darker. Hope I helped!