The sexual orientation of men has been a subject of debate for many decades now. Many believe that the sexual orientation of a man depends on what they were exposed to while growing up, whether being homosexual was something welcome in their environment or not. Recently, however, the world has witnessed people who show their sexual orientation despite I being a taboo in the places they come from. This means that being homosexual or heterosexual is something that happens in the womb like being female or male. It is something an individual has no control over.
Recent tests have found that in the DNA across the nine regions that exist, there is one that is related to sexual orientation. DNA methylation is a modification at the molecular level of the DNA that controls the expression of the genes. These expressions of the genes are exposed, by factors like the diet of an individual, exercises, their stress levels, chemical exposure and stress levels. These algorithm looks at patterns in the DNA methylation to determine the sexual orientation of a man.
According to DR. Tuck C. Ngun, this is the first example of a model that can predict the sexual orientation of an individual based on their molecular markers. In previous studies, the sexuality of a person was determined by looking at the activities or certain genes. This new study, builds on such studies of the genes and has been tested on identical twins too. Although identical twins have the same genetic sequence, It is very rare to find that both twins are gay. Of all identical twins, only 20% of them are both gay. This has made researchers into believing that this facts point to the DNA alteration which is a potential and main influence to the sexual preferences of an individual.
In a study of 37 pairs of twins in which one was heterosexual and the other homosexual and 10 pairs of twins who were both homosexual, researchers were able to control the genetic differences. Though it was still challenging, they were able to pinpoint he DNA methylation associated with homosexuality. In this study, they found that there are small areas in the 9 DNA methylations of the human genome that could accurately predict the sexual orientation of the twins. This study was completed with an accuracy of up to 70%. Sexual attraction is a fundamental part of life and should therefore be thoroughly researched.