Before recently, it was widely accepted that children inherit an equal amount of their intelligence from both parents, but it seems this is no longer accurate. Unfortunately for fathers everywhere, genetic research has found that people get much of their intelligence from the X chromosome, which happens to be the feminine gene. If the research is proven correct with further study, the mother has a much larger impact on their child’s intelligence than the father.
It’s not hard to see that this research is controversial. Studies that involve gene inheritance are always disputed, and they aren’t easy to conduct or prove.
This is even more the case when they pertain to intelligence. When reading about cases or studies like this one, it’s important to stay objective for the sake of science. Science is about growth and change, and of course, interpreting evidence; there are bound to be more studies on this topic in the near future.
In order to understand this research, you have to understand conditioned genes. Conditioned genes are gender specific, and they are made up of a biochemical material that creates a sort of tagging system.
This system allows us to see the gene’s origin, and determine the activated or deactivated state within the body. Activated genes influence development, while deactivated genes don’t.
This means that genes activated by the mother will result in deactivated genes from the father, and vice versa.
Cognition is thought to be influenced by the X chromosome, which we know to be feminine as females carry two and men only carry one. Intelligence is considered to be a highly conditioned gene that comes directly from the mother, which serves as the basis for the study’s hypothesis.
During the study, scientists used mice to prove their theory correct. They found that mice who were administered predominantly maternal genetic material developed a disproportionately larger cranium and brain, but had a smaller body.
Mice who received predominantly paternal genetic material experienced the exact opposite outcome; a smaller brain, but larger body.
In addition, researchers found that paternal genetic material within the cerebral cortex, which is the area of the brain responsible for executive functioning, did not exist.
This is significant because the cerebral cortex controls advanced thinking, language, planning, and the ability to reason logically.
There is no doubt that this study, and further studies of intelligence, will be subject to a high level of scrutiny. However, the study shows that the mother of a child has a much greater impact on intelligence than the father, as of now. Of course, intellect has a great deal to with a person’s experiences and work ethic in addition to genetics, which is why it will also be a topic up for debate.