Fig. 1
From: Autosomal genetic control of human gene expression does not differ across the sexes
Quantile–quantile plot for expected versus observed P values from a test of genetic correlation of 12,500 genome-wide gene expression probes across males and females. The distribution of P values is initially flat for values of 0.5, which is attributed to the likelihood ratio test being on the edge of the parameter space. Subsequently, the distribution closely follows the null distribution with little deviation of the test statistics from the expected