Intelligence and genetic markers in Chilean children.

Abstract excerpt

Genetic markers and total intelligence quotient (IQ) assessed by WISC (Wechsler Intelligence Scale for Children) were studied in children of both sexes from Santiago, Chile. Heterozygous boys for phosphoglucomutase 1 (PGM) and heterozygous girls for haptoglobin (Hp) had lower IQ than homozygotes. For ABO system, B girls had lower and B boys had higher IQ than children with other ABO phenotypes. These differences...

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