In a specific breed of cattle, the allele for red coat color and the allele for white coat color are inherited such that a heterozygous individual displays a 'roan' phenotype, consisting of both red and white hairs growing alongside each other. This is distinct from a different flower species where crossing a true-breeding red plant with a true-breeding white plant results in all pink offspring. Which of the following correctly identifies these inheritance patterns?

In a species of Mediterranean snails, shell color is controlled by a single gene with two alleles. When a snail with a solid black shell is mated with a snail with a solid white shell, all offspring have shells covered in distinct black and white spots. If these spotted snails are allowed to interbreed, what is the expected phenotypic ratio of the resulting generation, and which inheritance pattern does this illustrate?

In a species of ornamental fish, a cross between a blue-scaled fish and a yellow-scaled fish results in offspring that have both blue and yellow scales visible in a mosaic pattern. If a researcher were to cross these mosaic offspring with each other, what percentage of the next generation would be expected to show only a single, solid color (either blue or yellow)?

In a hypothetical population of rodents, tail length is governed by a single gene with two alleles. Crossing a homozygous long-tailed rodent with a homozygous short-tailed rodent results in all offspring having medium-length tails. If a medium-tailed rodent is crossed with a short-tailed rodent, what is the probability of producing offspring with medium-length tails, and what type of inheritance is being demonstrated?