The above statistics and conclusions clearly point towards genetic factors involved in homosexuality. Even though the percentage has slight differences, both identical twins and fraternal twins shows the tendency of becoming homosexuals if they genetic elements of homosexuality.
The possibility of existence of homosexuality gene 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 of the biologists are confident of identifying such a gene which will answer all the questions related to the reasons of homosexuality.
“Writing in the scientific journal Archives of Sexual Behavior, researchers from Queen Marys 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 military. This is not because of genetic factors, but because of the 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 relived properly, sexual energy can create immense problems to the living things.