In cats short hair is dominant over long hair; the gene involved is autosomal (that is, not on the sex chromosomes). An allele, B1, of another gene, which is sex-linked, produces yellow coat color; the allele B2 produces black coat color; and the heterozygous combination B1/B2 produces tortoiseshell (calico) coat color. If a long-haired black male is mated with a tortoiseshell female homozygous for short hair, what kind of kittens will be produced in the F1? If the F1 cats are allowed to interbreed freely, what are the chances of obtaining a long-haired yellow male?