Fathers – don’t hate this fact as much as your initial thinking might allow you too. You’re more clever than that. And for this, thank your mothers, actually. Genetic research has found that people more probably get a lot of intelligence from the feminine gene, which is X. The X chromosome has a thousand gene, and a bunch of them influence cognition.

Until recently, it was generally thought and accepted that both parents have an equal impact in their children’s intelligence. But if the last research conducted is right, then their impact is not equal since findings claim that women have a much larger impact on their child’s cognitive abilities than men.

We must note that genetics is a highly complex and multifaceted scientific arena and studies are continuously trying to shed light over our brains and uncover the enigmatic functioning of intelligence often evoke passionate debate. Before we dive into the findings, allow us to first explain a couple important facts.

The Role of X and Y Chromosomes

A chromosome is a DNA molecule with part or all of the genetic material of an organism.

  • A chromosome is a thread-like structure consisting of nucleic acids and protein. They carry genetic information.
  • Every human being carries one pair of chromosomes in each cell.
  • Females have two X chromosomes. Males have one X and one Y chromosome.

Conditioned Genes

In the most basic sense, conditioned genes are the ones that are gender specific. Depending upon the specific designation the genetic properties of conditioned genes are either activated or deactivated. In due course, the genetic properties are influenced.

Conditioned genes inherently contain a “tagging” system, which is made up of biochemical material. Two important things are allowed by this tagging system:

(1) tracing to the gene’s point of origin, and

(2) determination of an activated or deactivated state within the body. Activated genes will influence genetic development, while deactivated genes will not.

Secondly, the paternal genes get deactivated if an individual characteristic is influenced via the mother and vice-versa.

Findings of the Study and Related History

Is thought that the X chromosome is the one to influence cognition. Since females possess two X chromosomes while men carry just one, theoretically women are more likely to influence cognition. Even though, of course, there’s much more to the theory rather than the number of X chromosomes.

This is the point where conditioned genes kick in. A conditioned gene that comes directly from the mother it what Intelligence is thought to be – a highly-conditioned gene. In the study conducted, to test this hypothesis scientists used genetically-modified mice. They discovered embryonic test subjects that were administered predominantly maternal genetic material developed a disproportionately larger cranium and brain while developing a much smaller body. Subjects administered disproportionate amounts of paternal genetic material developed a larger body, but a smaller cranium and brain.

Besides cranium and brain size, researches were interested to know more for some other interesting observations too. Six areas of the brain which contained only maternal or paternal genes were the first to be identified. Another thing worth noting, it that they did not find any paternal genetic material within the cerebral cortex. Cortex is the area of the area of the brain responsible for executive functioning, such as language, planning, logical reasoning and advanced thinking.

Without a doubt, the findings of this and other similar studies concerning intelligence will continue to be examined and inspected. Anyway, there’s one conclusion which cannot be deniable: mothers have a significant influence on their children’s cognitive abilities.

Source: Shortbrains.