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Do we really inherit intelligence from our mothers?

Approximately 80% of a child’s intelligence is acquired from the mother

United States, April 4 (UITV) - A mother's genetics determines how clever her children are, according to researchers, and the father makes no difference. 

Women are more likely to transmit intelligence genes to their children because they are carried on the X chromosome and women have two of these, while men only have one.

Intelligence is believed to be among the conditioned genes that have to come from the mother. 

 A category of genes known as “conditioned genes” are thought to work only if they come from the mother in some cases and the father in other cases.

Researchers identified cells that contained only maternal or paternal genes in six different parts of the mouse brains which controlled different cognitive functions, from eating habits to memory.

Cells with paternal genes accumulated in parts of the limbic system, which is involved in functions such as sex, food and aggression.

Mother is always the real hero

Despite taking into account several factors, from the participants education to their race and socio-economic status, the team still found the best predictor of intelligence was the IQ of the mother.

Only 40 to 60 per cent of intelligence is estimated to be hereditary, leaving a similar chunk dependent on the environment. 

 With some studies suggesting a secure bond between mother and child is intimately tied to intelligence.

Of course, there's no reason why fathers can't play as big a nurture role as mothers.

And researchers point out that a whole array of other gene determined traits - like intuiton and emotions - which can be inherited from the father are also key to unlocking potential intelligence

Video Source: Youtube