Is Homosexuality Can Be Caused by Some Factors - Essay Example

One study revealed that “if one identical twin was gay, the other was also gay 50% of the time. If they were fraternal twins, they were both gay 22% of the time. And if one was adopted, the chances fell to 11%” (Dr.Starr). Ciani et al (n. d) also have pointed out that “homosexuals have more maternal than paternal male homosexual relatives”. The above statistics and conclusions point toward genetic factors involved in homosexuality. Even though the percentage has slight differences, both identical twins and fraternal twins show the tendency of becoming homosexuals if they have genetic elements of homosexuality.

The possibility of the existence of homosexual genes is widely discussed at present. “Although biologists are still far from answering this question, scattered evidence for a possible gene influencing sexual orientation has recently encouraged scientists to map out a guide to future research” (Is there a homosexuality gene?). Even though such a gene has not been discovered yet, many biologists are confident of identifying such a gene that will answer all the questions related to the reasons for homosexuality.

“Writing in the scientific journal Archives of Sexual Behavior, researchers from Queen Mary's School of Biological and Chemical Sciences, and Karolinska Institutet in Stockholm report that genetics and environmental factors are important determinants of homosexual behavior” (Homosexual behavior due to genetics and environmental factors). Homosexuality is common in the military. This is not because of genetic factors, but because of environmental factors. Soldiers are not getting any opportunities for heterosexual activities and they will rely on homosexuality for relieving their sexual energy. Sexual activities are not only a biological need but also a psychological need. If not relieved properly, sexual energy can create immense problems for living things. So, all living things will compel to engage in sexual activities to satisfy their biological and psychological need. Males staying in the company of other males may compel to engage in homosexual activities. Same way females living in the company of other females may opt for homosexuality rather than heterosexuality.

“D.F. Swaab in 1990, found in his post-mortem examination of homosexual males' brains that a portion of the hypothalamus of the brain was structurally different than a heterosexual brain” (Johnson). The brain controls all the physical and mental activities of a human being. The structural differences in the brain answer the question of why two individuals behave differently when facing the same stimulus. In other words, apart from genetic and environmental factors, biological factors can also cause homosexuality.

To conclude, homosexuality is caused by genetic, environmental, and biological factors. Read More