Twins and sexual orientation

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As both blood type and Rh factor are genetically inherited traits controlled by alleles located on chromosome 9 and chromosome 1 respectively, the study indicates a potential link between genes on autosomes and homosexuality. Psychological Science in the Public Interest. Are You Drinking Enough Water? Read about four important parenting tips from Ellen White to help develop a healthy family unit. Herbs and Foods for Better Blood. McCarthy and other experts cautioned that the discovery of epigenomic marks suggestive of homosexuality is a far cry from finding the causes of sexual preference. However, it is not true.

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Corresponding estimates among women were.

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Study aims to uncover why twins have different sexual orientations

Gay brothers who showed this maternal pedigree were then tested for X chromosome linkage, using twenty-two markers on the X chromosome to test for similar alleles. Gene J 3 years ago. Other researchers support biological causes for both men and women's sexual orientation. Share it with your friends tweet email. Retrieved June 12, If you want to use this article on your site please click here. The results for INAH3 weight were similar to those for INAH3 size; that is, the INAH3 weight for the heterosexual male brains was significantly larger than for the heterosexual female brains, while the results for the gay male group were between those of the other two groups but not quite significantly different from either.

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