Figure 3.7 Prevalence of a trait in two populations (P1 and

核心提示：The phenotype is rated on a 0–7 scale with 0 indicating no adverse pheno- type (i.e., wt); 1 a mild phenotype; and 7 a severe phenotype. Three genetic loci are illustrated with a total of 6 different SNPs, 2 per locus, for a total of 27 genoty