How do you get a red-roan horse?

You get a red-roan horse by breeding a red horse with a white horse (or a horse with a dominant white gene).

Here's the breakdown:

* Roan is a coat pattern, not a breed. It means a horse has a mixture of white hairs mixed with other colored hairs.

* Red roan specifically refers to a horse with red hairs mixed with white hairs.

* Red horses have the red coat color gene.

* White horses can either be homozygous for the dominant white gene (WW) or heterozygous (Ww).

How breeding works:

* Red horse (rr) + White horse (WW or Ww) = Red roan horse (rW)

The red roan foal will inherit one red gene (r) from the red parent and one dominant white gene (W) from the white parent. This combination results in the roan coat pattern.

Important note: It's essential to remember that not all red horses will produce red roans when bred with a white horse. Some red horses might carry a recessive white gene (w) which won't produce a roan coat pattern.

Here's a simplified chart:

|---|---|---|---|

| Red (rr) | White (ww) | rw | Red |

To ensure you get a red roan horse, you'll need to breed a red horse with a white horse that carries the dominant white gene (W). You can usually tell if a white horse carries the dominant white gene by looking at its pedigree or asking the breeder.