6.c) Experiments with grandpy chromosomes

Menssalina is a simplification of the Darwin-out experiment of quantitative genetics, so it would be convenient to read it before.

Menssalina experiment is more powerful, cheaper to carry out, and could be applied equally to study the evolution of different chromosomes and their participation in many biological processes with possible evolutionary differences due to gender.

It is important to highlight that the methodology of the grandparent chromosomes can be applied to any chromosome, as they imply independent functional units within the mechanisms of genetic evolution with sexual differentiation.


We must recognize that research on intelligence is very mediated by the possible social reaction and personal ideology.

On the other hand, researching human intelligence means, more than anything, knowing the concept itself is subject to many interpretations. It is not enough to keep the classic concept of general intelligence; among other known concepts are the theory of multiple intelligences, the somewhat opportunistic theory of emotional intelligence or the negationist ideology of intelligence.

We would add natural intelligence, which is usually heard speak very little of it. The natural intelligence would be all the relational abilities of a human being, conscious or unconscious, and those of the own cells and corporaceous organs.

Maybe it would be better if we talk about factories. The same factory will create big dolls –or trucks– and little dolls –or cars; it will use the best technology for both. It will use its economic and human resources so that its creatures are as perfect as possible. In other words, it will transfer all its natural intelligence to its creatures, of course in approximate proportion to the sale price and other conditions.


Quantitative genetic experiment (Menssalina / Darwin-out)
Evolution of grandma and grandpa chromosomes.


There may be many factories or brands, and there will be differences between them, but all of them will act under the same natural principles.

However, no one will be surprised that his or her characteristics, intelligence or partial skills are different. Nor should anyone be offended by differences between a truck carrying more cargo, a faster car, or an armored transport of large amounts of money.

The proposal aims to discover a little more with experimental research on the possible different distribution of partial characteristics of natural intelligence between men and women. There is already some information on this subject. There are tests in which women are better, and in others, men are worse.


Phases of the proposal:

  • Choosing a sample

    Choose a gifted sample of 50 women and 50 men or 100 men and 100 women, always with a grandfather or a maternal grandmother alive. Mensa –the world's largest gifted association– could provide them altruistically.

  • Detecting the source of the X chromosome

    Detect if the X chromosome that we all have from one of our maternal grandparents is from grandpa (XGF) or grandma (XGM). We use the grandpy X chromosome because it reduces the number of chromosomes to analyze and, at the same time, allows us to discriminate the results by gender.

    Logically, always maintaining the privacy of the sample and with keys in work to be done.



  • Making statistics

    Simple and cheap, add and compare

    Menssalina experiment Groups - origin of X chromosome
    One of our maternal grandparents is from grandpa or grandma
  • Conclusion

    If the grandmothers above win significantly or, on the contrary, the grandparents win with some sigma; we will have to look for more complicated explanations than if the theoretically expected draw occurs.

    We would say that grandparents win because the case of gifted is very extreme within the distribution of intelligence and because small genetic variations about the measurement made of more or less classical intelligence can make it not reach the level of giftedness required –Upper than 98% of the population.

    The small differences we try to detect, if they exist, could be explained by the known fact that men produce more genetic variations than women and that intelligence increases with time if there are no external elements to normal evolution.

    A generation could be sufficient in this case, given the high sensitivity of the model proposed by the characteristics above of the giftedness of the sample. In a sample of 100 or 200 people, other possible factors will tend to cancel since they are surely random concerning the grandpyness above.

    If the result is balanced, there will be scientific evidence there are no gender differences of the extent of intelligence admitted to entering Mensa, ➹ ending with the persistent doubts about it, given that the proportion of male members is considerably higher.

The scientific impact seems guaranteed if the result is unbalanced in favor of one granpy. The research could be extended, for example with analysis by subsamples by gender, of types of entrance tests, or of carrying out different types of tests of the people included in the sample to see their effect.

Of course, as we said at the beginning, this methodology could be used for another type of evolutionary characteristics.

In any case, this proposal seeks to approach the objective truth, whatever it may be.