A white cat with tabby stripes is most likely a white American Shorthair. A cat with both tabby and white markings is also likely a white American Shorthair, but not necessarily; it could be a cat from another breed with a genetic mutation affecting its coat color. The back will have tabby stripes, while the chest and neck will be white. A high-quality white American Shorthair typically has symmetrical stripes on its back and over 50% white fur, with a V-shaped face. Additionally, cats with black, red, and white patches or other patterns can also be white tabby cats.

However, a cat's breed and coat color are merely external characteristics; what truly matters is its temperament and health. Regardless of breed, all cats should be treated with kindness and love. Before getting a cat, it's advisable to thoroughly understand the breed characteristics, habits, and health needs of cats to better care for them. At the same time, it's crucial to choose reputable sources to avoid purchasing from illegally bred or abused animals.