Essay about Causes of Homosexuality - Nature AND Nuture

Many people cannot understand why anyone would want to get involved in homosexual activity. There are many arguments about homosexuality whether is by nature or nurture. Before we make judgments on homosexuality, we need to identify the causes of homosexuality. Homosexuality is caused by genetic, biological and environmental factors. The first possible cause of homosexuality is genetic factors. Homosexuality is a trait from birth (Buchanan, 2000). Studies found that identical twins share many common traits. A study found that identical twins normally share homosexual behavior if one of them is homosexual. This proved that genes are likely to cause homosexuality. In addition, according to (Santinover, 2002), homosexuality is a†¦show more content†¦This research indicates that female relatives on the father’s side of homosexual tend to have fewer children compared to female relatives on the mother’s side. This gave reason for researchers to believe homosexual trait must be passed down through the female X chromosome. In addition, homosexuality can also be caused by biological factors. The first biological factor is hormonal imbalances in the body. Hormones play an important role in stimulating one’s intensity of sexuality. Estrogen is normally associated with female and testosterone with the male. A homosexual man is likely to have either more estrogen or less testosterone and vice versa (Buchanan, 2000). Furthermore, sexual orientation is developed in the womb, as suggested by Bogaert (2006). He said a woman body may prompt an immune reaction on the male fetus as the body sees a male fetus as an ‘outsider’. Therefore, antibodies will be created and this may affect the male’s brain growth. This explains why older brothers are more likely to be gay. In addition to that, homosexual males’ brain structures are similar to heterosexual females. According to Rahman (2008), these brain differences may develop early in the feotal development. Lastly, homosexuality can be caused by environmental factors. Adults’ sexual behavior is influenced by their early sexual behavior (Cameron, 1999). The first sexual experience has great influence on both male and female. Based on FRI (Family