Question

Cat fur color is determined by codominance. The allele for tan fur (TT) and the allele for black fur (BB) are codominant. The heterozygous condition (TB) results in a cat with tan and black spots, called a tabby cat. What would occur is a tan cat was crossed with a tabby cat? Draw the Punnett square and identify the genotypes and phenotypes of their offspring. Cat fur color is determined by codominance the allele for tan fur (TT) and the allele for black fur (BB) are codo

Answer 1

If a tan cat (TT) is crossed with a tabby cat (TB), the Punnett square for their offspring would be:

| T B

--|-----

T | TT TB

B | TB BB

The possible genotypes and their frequencies are:

TT (tan fur): 50%

TB (tabby fur): 50%

All offspring would have either tan fur or tabby fur, but none would have black fur. The possible phenotypes and their frequencies are:

Tan fur: 50%

Tabby fur: 50%

Therefore, all offspring would have some combination of tan and black fur, resulting in a tabby appearance.