Sons inherit intelligence from their mothers and looks from their fathers.

That is the conclusion of researchers at Ulm University, Germany.

Scientists now agree that intelligence is a combination of many factors, including genetics and environmental influences.

Genetically, Dr. Horst Hameiste, head of the research team, discovered that intelligent genes are scattered throughout the DNA chain, but up to two-thirds are concentrated on the X sex chromosome, while the Y chromosome does not have any intelligent genes.

Thus, the father can only pass on his personality to his child, while the mother passes on all her intelligence to her child. This discovery explains why great men all had very intelligent mothers.

Women with full hips and slim waists often give birth to children with superior intelligence.

Because men’s intelligence genes are densely concentrated on the X chromosome, they can fully function. But when they are “damaged”, they can cause unpredictable consequences.

Therefore, some men are exceptionally intelligent, but some are extremely stupid. In contrast, women's intelligence genes are spread evenly across the two X chromosome segments, so their intelligence is more balanced.

Perhaps that is why women are not as intelligent as men, but there are also few idiots. Hameiste said: "From a genetic perspective, men are at an evolutionary disadvantage compared to women."

Hai Trieu

(synthetic)