Let’s brush up on mapping. for questions 1-8, pure-breeding p0 animals were mated to generate f1 animals heterozygous at the b and w genes. the heterozygous f1 animals were test-crossed and yielded progeny with the phenotypes below. mutations in the b gene (b) cause a “no bristles” phenotype. mutations in the w gene (w) cause a “no wings” phenotype. both genes are haplosufficient. 45% normal bristles, normal wings 45% no bristles, no wings 5% no bristles, normal wings 5% normal bristles, no wings the numbers above suggest that the b and w genes are linked. what ratio of progeny would you have expected to see if b and w were on different chromosomes?