In recent years, scientists have been located a gene for everything, and it claims, no matter whether religiousness, egotism and addiction - for everything there seems to be a gene.
The neurologist Louann Brizendine describes in her book "The Female Brain," but an interesting point, under the title "the monogamy gene," she says of prairie voles, which are among the 5% of mammals, the monogamous . Live Prairie voles form lifelong relationships with one partner and are true family men, the care for the female and the offspring after birth.
In contrast, voles form in the mountains (montane voles), which share 99% of genes with their counterparts from the prairie, an extremely varied sexual life and shall not in any way for their children. The difference is, according to Brizendine, which itself refers to trials in a simple gene - the monogamy gene, a small piece of DNA, the mountain voles do not.
Even in humans there is a comparable range of the voles mating and family behavior. Loving fathers who look after their family care to fathers who have children with several women and little for those scissors, just like in the above-mentioned contrast between the two vole species. Scientists are
speculate that different genes and hormones may be behind these differences in behavior. There is a gene that has a specific vasopressin receptor (vasopressin be favorable to the forming of partnership) in the brain controls; prairie voles have more of these receptors in their brains than their counterparts in the mountains, so they are susceptible to the partnership-creating effects of vasopressin. As a scientist, the missing gene into the Brains of prairie voles-"injected" (as is always the work), were derived from the formerly promiscuous voles monogamous flagship family men.
And man?
Brizendine describes the males, which have the longest gene variant of the vasopressin receptor, are also the most loyal - the longer, more faithful and reliable. The same gene that is also to be found in humans, there are 17 different lengths - so could monogamy and the property of being a family man, with men in some respects his case assessment, not education (at least not alone).
also allied with the two men Apes - chimpanzees and bonobos are present, these genes in different lengths. Chimpanzees, where it is shorter, live in demarcated territories, with a strict hierarchy, which is headed by males. In addition, they often lead war with other monkeys communities.
Bonobis however, point out the longer version, and their hierarchy is headed by women and any social interaction will be stamped with a little sexual rubbing. They are extremely social and it seems that the human version of this gene is more akin to that of bonobos. People with the longer "monogamy gene" are socially receptive. People with shorter gene tend to have deficits, have for example Autism is a very short "monogamy gene".
Brizendine concludes that correlate the differences in partnership behavior of men with the individual differences in the length of this gene and the hormone might.
But what about the women? Finally, women also cheat. Again, there is indeed an animal-like basis, the females of "monogamous" birds seem to have affairs to secure the best possible genes for their babies. Here Brizendine sees the reason for cheating female - the availability of better genes, but unfortunately these are clumsy evolutionary explanation for her less than the neurological men. What we
close it? That you are not everything has to take at face value, how cheating is innate, can be said of course not - but it could well be that there is a genetic predisposition that in this area as a specific behavior when moves do not necessarily have to be favors yet. Brizendine raises the question of whether there will be some time in the future in drugstores tests to determine that the length of the "monogamy gene" can, at the most interesting would be to learn whether the fraudsters have really across the board shorter gene as the loyal family men. Such test results are pending.
See also http://whsc.emory.edu/_pubs/em/1998summer/vole.html
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