Studies Reveal That Children Inherit Their Intelligence from Their Mothers

By Andrew Alpin, 27 July 2022

Genetic research has shown that people probably get a lot of their intelligence from their X gene, which is the feminine one. There are a thousand genes on the X chromosome, and many of them affect how people think.

People used to think that both parents pass on an equal amount of genetics that forms their child's intelligence. But if this research is right, it will prove that women are the ones whose genetics develop their children's cognitive skills, not men.

Studies on children's intelligence have always sparked numerous debates

Now, it's important to know that this research raises a lot of questions. Most studies that claim to have figured out how intelligence works often spark heated debates. Similarly, genetics is a very complicated and multifaceted field of science. Scientists keep researching to try to disprove or drastically change any related study that has come before.

Even though there is a lot of disagreement, it is best to present and understand these findings with an open mind. If anything, this study is fascinating and fun.

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What X and Y chromosomes have to do with being smart

A lot of people don't know much about genetics. So, it's helpful to review a couple of important facts quickly. A chromosome is a structure made of nucleic acids and proteins that looks like a thread which carries information about genes. Every human being has one pair of chromosomes in each cell. Females have two X chromosomes, while males have one X and one Y chromosome that make a pair.

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'Conditioned Genes'

In the most basic sense, 'conditioned genes' are those that are different for men and women. Most of the time, the genetic properties of conditioned genes are either activated or deactivated, depending on the specific designation and, therefore, the genetic properties being changed.

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These genes have an inbuilt tagging system

Conditioned genes have a "tagging" system built into them. This system is made up of biochemical materials. This tagging system makes it possible to do two important things: tracing where the gene originated and determining an activated or deactivated state within the body. Genes that are activated will affect genetic development, while deactivated genes will not.

Secondly, if the maternal genes influence the individual's characteristics, then the paternal genes are deactivated. On the other hand, if a trait comes from the paternal genes, then the maternal genes are deactivated. The study of intelligence is based on the mechanisms of the conditioned genes.

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The results of the intelligence study and their history

People think that the X chromosome has the most effect on how people think. Theoretically, because women have two X chromosomes and men only have one, women are more likely to change how people think. The theory is about much more than just the number of X chromosomes.

This is where conditioned genes come into play. People think that intelligence is a highly conditioned gene or a conditioned gene that comes from the mother.

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Mice were used in an experiment to test this theory

Scientists used mice with changed genes to test their theory in this study. They found that embryos which were given disproportionately maternal genetic material developed craniums and brains that were much bigger than average. However, their bodies were much smaller. Subjects which were given disproportionate paternal genetic material grew bigger bodies but had smaller skulls and brains.

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Paternal genetic material was mainly absent in the cerebral cortex

Aside from the size of the brain and cranium, researchers also observed some interesting things. First, they found six parts of the brain that only had maternal or paternal genes. Second, they didn't find any paternal genetic material in the cerebral cortex, which is the part of the brain that controls executive functions like language, planning, logical reasoning, and advanced thinking.

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Researchers at the University of Cambridge first studied this concept in 1984

It's not a new idea that maternal genes significantly affect how intelligent their children are. In 1984, the University of Cambridge looked at both brain development and genomic conditioning. This was called "co-evolution." Cambridge sciences finally concluded that maternal genes contribute more to the thought centers of the brain.

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Today, results have been found that are similar to the ones from the experiment above

In one important study, scientists from a government agency in Scotland kept track of 12,686 people between the ages of 14 and 22. Researchers would talk to the same people every year and watch how their minds changed while taking into account things like education and ethnicity. Scientists say that the mother's IQ was the best predictor of the child's intelligence.

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Research into this subject will still continue

Researchers will definitely keep evaluating and questioning the results of this and other studies about intelligence. As mentioned earlier, some people won't believe scientific research that claims the development of intellect. But if there is one thing that can be said for sure, it is that mothers have a significant effect on how smart their children turn out. It's not just about genes, by a long shot. A child's intellectual growth is directly affected by how well they are fed and cared for, which are mostly the mother's jobs. The special bond between a mother and her child also encourages them to learn about the world and solve problems.

In the end, most genetic experiments were wrong about how important women are to the intellectual development of children. But the results of these and other studies seem to support the idea that most individuals get their intelligence from their moms.

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