+[frequencies of SNPs for schizophrenia correlate well for subpops on the same continent (p. 187–8)]
+
+[table p. 192]
+
+[sickle-cell, lactase persistence]
+
+[Tibet, Peru, Ethiopia all have high-altitude adapatations, but they're different adaptations, p. 198]
+
+The third part of the book is about genetic influences on class structure!
+
+[p. 212-4: A + C + E model and comparing identical and fraternal twins (different from twins raised apart)]
+[ACE model assumes no assortative mating, which leads to an underestimate of A: because it makes fraternal twins resemble each other for non-environmental reasons]