Where do we get our intelligence from?
Scientists have discovered that children's intelligence is inherited from their mothers.
Intelligence is believed to be a sex-specific gene that we get from our mother. Researchers used genetically modified mice to test this theory. They found that test subjects injected with female chromosomes developed significantly larger brains and skulls and much smaller bodies, while those injected with male-dominated chromosomes developed larger bodies and smaller brains and skulls. In addition, the researchers also made other observations, such as identifying 6 different regions of the brain that are made up of either maternal or paternal genes This chromosome holds thousands of genes that affect cognition. Until now, parents were thought to have an equal influence on their children's intelligence, but it has been proven that this study is too general and the result is doubtful. Many studies stress that genetics is extremely complex and a challenge for research. Despite this strong division, it is better to approach it from an objective perspective. Therefore, it is useful to first know some facts about the functions of the X and Y chromosomes.
Chromosomes are made up of nucleic acids and proteins. Both store information about the genetics of transmission. All humans have a pair of chromosomes in each cell of the body, XX for females and XY for males. Genetic differences in sex-determining genes are either activated (they affect our genetic environment) or deactivated (they do not affect the genetic environment) depending on their specific location in the organism and this ultimately affects character traits. Thus, if a trait is activated through the mother, genes of the same type from the father are deactivated.
However, this theory is not very new. In 1984, Gambridge University studied genomic composition and brain development, concluding that maternal genes supply the brain with more material. A study in Scotland of 12 686 people aged between 14 and 22 followed their intelligence over a number of years and found that maternal IQ was a better indicator of high intelligence.
The structure of genes provides the foundation for intelligence research. Females have a greater influence on cognitive behaviour because they have two X chromosomes, while males have only one. But this theory is based on more than just the number of X chromosomes: the development of a child's intelligence is influenced not only by genes but also by nutrition and the care the child receives.
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