If a pure breeding(homozygous) black(dominant), longhaired (recessive) cat is made of pure breeding Siamese, shorthaired cat, and one of their male offspring has made it to one of their female...

If a pure breeding(homozygous) black(dominant), longhaired (recessive) cat is made of pure breeding Siamese, shorthaired cat, and one of their male offspring has made it to one of their female offspring, what is the chance of producing a Siamese colored shorthair kitten?