If you are brilliant, then you should thank your mother. Research shows that it is the mothers who are responsible for transmitting the genes of intelligence. It may mean the end of many years of sexist stereotypes.
This idea comes from what is called “conditioned genes”. These genes act differently according to their initial disposition. What’s interesting is that some of the genes that are affected only work if they come from the mother. For example, if this same gene comes from the father, then it is disabled. This same truth applies to the contrary; some genes are activated only if they come from the father.
The genes of our mother go directly to the cerebral cortex, those of our father go to the limbic system.
Intelligence can have hereditary components, we know it. However, a few years ago, we discovered that most depended on the father and the mother. Recently, several studies have shown that children are more likely to get their intelligence from their mothers, because the genes related to intelligence are in the X chromosome.
A first major study in this field took place in 1984 at the University of Cambridge. The study researched “brain coevolution and genome conditioning,” concluding that it is the maternal genes that contribute most to the development of thought centers in the brain. “
Researchers have created special rat embryos in the laboratory that only have the genetic material of the mother or father. But when the time has come to transfer the embryos into the womb of another rat, they are dead. Thus, the study revealed that there are conditioned genes only if they are activated when they are inherited from the mother, while being essential for the proper development of the embryo. Conversely, the genetic heritage of the father is essential for the development of the tissue that will form the placenta.
Scientists prove that the intelligence of the child is transmitted by the mother and not the father
New studies, new lights
As this is an interesting theory, scientists have continued to study it. Robert Lehrke is one of those who have always been fascinated. He revealed that most children’s intelligence depends on the X chromosome, and he also discovered that since women have two X chromosomes, they are “twice as likely to inherit intelligence-related features. “
One of the most fascinating results of this theory certainly comes from a study conducted by the Medical Research Council Social and Public Health Sciences Unit in the United States. Every year, since 1994, they have interviewed 12,686 young adults aged 14 to 22 years. The researchers took into account several variables, skin color, education, socio-economic status. Through this method of study, they found that the best way to predict someone’s intelligence was to look at the IQ of the mother. What is even more interesting is that the ratio of intelligence of the young to their mother averaged only 15 points.
40 to 60% of intelligence comes from our parents. Thus, the remaining percentage will depend on our environment and our stimulation. In fact, what we call “intelligence” is simply the ability to solve problems. But even to solve a simple problem, our limbic system must work. Therefore, even though intelligence is closely related to the function of rational thought, it is also influenced by instincts that usually come from the father.
In addition, we must not forget to continue to stimulate the intelligence of a child, even if he has a high IQ. Nurture his intelligence during his life by offering him new challenges, and present him with opportunities all the time. Without these tools, his intelligence can dissipate.
If we go beyond what science says about our genetics, fathers should not be discouraged. They contribute a lot to the development of their children, especially when they are emotionally present. “The IQ we are born with is important, but not decisive. “
Sources Scientists prove that the intelligence of the child is transmitted by the mother and not the father:
Luby, J. L. et. Al. (2012) Maternal support in early childhood predicts larger hippocampal volumes at school age.Journal of Proceedings of the National Academy of Sciences; 109(8): 2854–2859.
Der, G. et. Al. (2006) Effect of breast feeding on intelligence in children: prospective study, sibling pairs analysis, and meta-analysis.BMJ; 333(7575): 945.
Keverne, E. B.; Surani, M. A. et. Al. (2004) Coadaptation in mother and infant regulated by a paternally expressed imprinted gene.Proc Biol Sci.; 271(1545): 1303–1309.
Zechner, U. et. Al. (2001) A high density of X-linked genes for general cognitive ability: a run-away process shaping human evolution?Trends Genet; 17(12): 697-701.
Gécz, J. & Mulley, J. (2000) Genes for Cognitive Function: Developments on the X. Genome Res; 10: 157-163.
Vines, G. (1997) Mom, thanks for the intelligence.The World ; 253.
Keverne, E. B.; Surani, M. A. et. Al. (1996) Genomic imprinting and the differential roles of parental genomes in brain development.Brain Res Dev Brain Res; 92(1): 91-100.
Keverne, E. B. et. Al. (1996) Primate brain evolution, genetic and functional considerations.Proc. R. Soc. Lond. (Biol); 264: 1-8.
Allen, N. D. et. Al. (1995) Distribution of parthenogenetic cells in the mouse brain and their influence on brain development and behavior.Proc Natl Acad Sci U S A.; 92(23): 10782–10786.
Surani, M. A.; S. C. Barton & M. L. Norris. (1984) Development of reconstituted mouse eggs suggests imprinting of the genome during gametogenesis.Nature; 308: 548–550.
McGrath, J. & Solter, D. (1984) Completion of mouse embryogenesis requires both the maternal and paternal genomes.Cell; 37(1): 179-183.
Barton, S. C.; Surani, M. A. & Norris, M. L. (1984) Role of paternal and maternal genomes in mouse development.Nature; 311:374-376.
Matas, L.; Arend, R. A. & Sroufe, L. A. (1978) Continuity of adaptation in the second year The relationship between quahty of attachment and later competence.Child Development; 49: 547-556.