What is the incidence of Folded Ear Shorthair?

One: Both are healthy with folded ears and no disease, with a 25% incidence of offspring. Two: One folded ear is healthy and undiseased, and one folded ear is standing recessive with a standing ear phenotype, with a basic 0% incidence rate. Three: one healthy folded ear without disease and one standing ear without the folded ear gene, incidence 0%. Four: one diseased folded ear, one healthy folded ear, incidence 50%. Five: two diseased folded ears, incidence 100%. All of the above exclude inbreeding. Two and three exclude genetic mutation factors, if due to mutation or other factors, even if the disease is more stable and milder, the onset time is also more later, but there is still a hidden onset gene.