Describe tests that would determine whether the curl gene is dominant or recessive and whether is autosomal.?

Question

11. In 1981, a stray cat with unusual curled-back ears was adopted by a family. Hundreds of descendants of this cat have since been born, and cat fanciers hope to develop the “curl” cat into a show breed. The curl allele is apparently dominant and carried on an autosome. Suppose you owned the first curl cat and wanted to develop a tru-breeding variety. Describe tests that would determine whether the curl gene is dominant or recessive and whether is autosomal or s*x-linked

Answer 1

Breeding tests are always easier when you have homozygotes.  Heterozygotes are just confusing to work with.

To produce homozygote lines, you just keep breeding for a trait till it's "true-breeding" - i.e. only that trait shows up.  Even if you can only get your population up to 99%, that's still pretty good because your data will still skew like it was homozygous with a few exceptions.

You'll want a population (so not just individuals) of true-breeding curl-eared cats, and a population of non-curl cats.

You should be able to figure it out from there!