Figure 1
From: A genome-wide association study for extremely high intelligence
Manhattan (a) and Q–Q plot (b) of P-values of the single-nucleotide polymorphism (SNP)-based association analysis for the case-control status of high IQ. The dotted line indicates the threshold for genome-wide significance (P<5 × 10−8) for 6 773 587 SNPs adjusted for sex and the first 10 principal components.
