See for yourself the impact chocolate can have on your health. If you want to use this article on your site please click here. No conclusive evidence supports any one specific cause of homosexuality; however, most researchers agree that biological and social factors influence the development of sexual orientation. The researchers found another gene, named "thyroid stimulating hormone receptor" TSHR on chromosome 14 which dna sequence is different also for gay men. The Science of Sex, p. Introduction to Evidence For Design.
Chromosome linkage studies of sexual orientation have indicated the presence of multiple contributing genetic factors throughout the genome.
Although consistent differences have been identified, including the size of the brain and of specific brain regions, male and female brains are very similar. Can plants really communicate? Jail "anti-vac" Parents Vasey and VanderLaan found that the fa'afafine said they were significantly more willing to help kin, yet much less interested in helping children who aren't family, providing the first evidence to support the kin selection hypothesis. Successive male fetuses are then attacked by H-Y antibodies which somehow decrease the ability of H-Y antigens to perform their usual function in brain masculinisation. This will make a gender-conforming child feel different from opposite-gender children, while gender-nonconforming children will feel different from children of their own gender.