Menssalina experiments with grandparents’ chromosomes

Experiments of quantitative genetics with chromosomes of the grandparents to study the transfer of characters with sexual differentiation to grandchildren. Menssalina is a particular experiment on intelligence.

Book front cover of the Conditional Evolution of Life. Seahorse and goldfish.



Author: José Tiberius


6.c) Experiments with grandpy chromosomes

Menssalina (2016) simplifies the Darwin-out experiment proposition (2011) of quantitative genetics, so it would be convenient to read it before.

Menssalina experiment is more powerful and cheaper. It could apply equally to study different chromosome development and their participation in many biological processes with possible evolutionary effects due to gender.

It is relevant to highlight that the grandparent chromosomes' methodology could work for any chromosome. They denote independent functional units within the mechanisms of genetic evolution with sexual differentiation.


We acknowledge that intelligence research relates significantly to the possible social reaction.

Secondly, researching human intelligence means, more than anything, knowing the concept itself is subject to many interpretations. There are general intelligence, multiple intelligences theory, somewhat opportunistic emotional intelligence, and negationism.

We would add elegant intelligence, which is usually heard speak very little of it. It would be all the relational abilities of a human being, conscious or unconscious.

A good enough approximation is the existing indicators or intelligence quotients - IQ.

Maybe it is 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 intelligence to its products, of course, in approximate proportion to the sale price and other conditions.

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 surprise by diverse characteristics, intelligence, or partial skills. Nor should anyone be trouble by dissimilarities between a truck carrying more cargo, a faster car, or an armored transport of large amounts of money.


Quantitative genetic experiment (Menssalina / Darwin-out)
Scheme of the Darwinoutro experiment with evolution of chromosomes to be able to discriminate x male and female.


The proposal aims to revalidate The EDI Study's results (2002) on intelligence evolution, confirming the most significant propositions of the Conditioned Evolution of Life –CEL.

Do not be afraid of the different gender functions in the mechanisms of human evolution, even if they affect partial characteristics of intelligence. The subject is known and generally accepted; women are better in some IQ tests and worse in others.

Phases of the proposal:

  • Choosing a sample

    Choose a sample of gifted people of 100 men, women, or mixed, always with a living maternal grandfather or grandmother, 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 we all have from one of our maternal grandparents is from grandpa (XGF) or grandma (XGM). We use the grampy X chromosome because it reduces the number of chromosomes to analyze and, at the same time, allow us to discriminate the results by gender.

    Logically, always maintaining the privacy of the sample

  • Making statistics

    Cheap and straightforward, add and compare


    Menssalina experiment Groups by the origin of X chromosome
    Scheme that the mean IQ of women with XGF higher than with XGM to confirm with the Menssalina experiment.
  • 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.

    According to the Conditioned Evolution of Life, the grandparents should win because the gifted sample is extreme within intelligence distribution. Small genetic variations may impede reaching the level of giftedness required –Upper than 98% of the population.

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

    A generation could be sufficient given the intelligence change in one generation detected in The EDI Study and the high sensitivity of the proposed experiment due to the sample’s characteristics. Other possible factors will tend to cancel since they are random concerning the grumpiness above.

    A balanced result will suggest no gender differences in the extent of intelligence admitted to entering Mensa, * ending with the persistent doubts about it, given the proportion of male members is considerably higher in every country.

The scientific impact seems guaranteed if the result is unbalanced in favor of one grampy. For example, the research could be broader, analyzing subsamples by gender or types of IQ tests.

As we have commented, this methodology could be useful for other evolutionary characteristics.

Finally, this proposal seeks to approach the objective truth, whatever it may be.