Genetic mapping reveals complex traits draw more heritability from intergenic DNA

Schizophrenia, height, cholesterol. Each has its ain familial signature. That signature is made up of familial variants: tiny differences successful the DNA series that marque 1 person's genome disagree from another's. Some traits, specified arsenic the magnitude of cholesterin successful the blood, are shaped by comparatively fewer familial variants. Other traits, specified arsenic schizophrenia, are shaped by galore thousands of them, each contributing astir thing connected its own. Geneticists telephone this polygenicity.