Pennylynn wrote:
I tend to agree with you. I wonder, will any of the homosexuals on OPP have the guts to respond to this topic.
It could be interesting. A lucid answer would be expected from Paul, the rest would just spew their garbage as usual.
this article on the subject shows promise Apparently the blog is by a L***Q youth sight so some check into validity might be in order, but interesting nevertheless.
Youth Blog Gay Biology: Does Epigenetics Cause Homosexuality?
Posted on September 19th, by Greg in Featured, Youth Blog. No Comments
Colorful double helix illustrationNear the end of last year a scientific article by Rice, Friberg, and Gavrilets [1] led to media reports that epigenetic markers cause homosexuality [2, 3]. So what are epigenetic markers? And do they really cause homosexuality?
What are Epigenetic Markers?
Genes provide the instructions for creating proteins, which are responsible for how we are made and how we develop. However, they do not operate in a vacuum. Our biology and our environment can change how much of a protein our genes make.
Epigenetics refers to chemical changes that alter the protein production of a gene without changing the genetic code itself. Epigenetic markers attach to a gene and can make that gene produce either more or less of a protein. Biologist Jeremy Yoder compares epigenetic markers to notes in the genetic code like notes in the margins of a book that might change how you read it. In theory, unlike genes, epigenetic markers arent supposed to get passed on from one generation to the next, but sometimes they do.
How Can Epigenetic Markers Cause Homosexuality?
Rice and his colleagues think that epigenetic markers may be important for ultimately determining who were attracted to when we are still just a developing embryo. Its believed that epigenetic markers from the previous generation are erased early in an embryos development and that we take on new epigenetic markers. However, researchers Morgan and Whitelaw found that not all of the markers from our parents get erased [4]! Rice and his fellow researchers theorize that homosexuality may be caused when fathers accidently pass on their epigenetic markers that made them attracted to women to their daughters and mothers pass on their epigenetic markers that made them attracted to men to their sons.
Do Epigenetics Actually Cause Homosexuality?
The short answer is maybe. Many in the media jumped the gun by making it sound like this theory had been confirmed. In t***h, Rice and his team were only proposing a theory that makes sense with the research thats out there, but it hasnt been tested yet. The good news is, like most good theories, it can be tested! In the next few years we may know if and how epigenetics might be involved in the origins of homosexuality.
If you want to learn more, read what biologists Jon Wilkins and Jeremy Yoder have to say about Rice, Friberg, and Gavrilets paper.
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References:
1. Homosexuality as a Consequence of Epigenetically Canalized Sexual Development William R. Rice, Urban Friberg and Sergey Gavrilets The Quarterly Review of Biology , Vol. 87, No. 4 (December 2012), pp. 343-368.
2.
http://thinkprogress.org/l**t/2012/12/11/1318311/study-finds-biological-causes-for-homosexuality/3.
http://io9.com/5967426/scientists-confirm-that-homosexuality-is-not-geneticbut-it-arises-in-the-womb4. Morgan, D. K., & Whitelaw, E. (2008). The case for t***sgenerational epigenetic inheritance in humans. Mamm Genome, 19, 394-397. Doi: 10.1007/s00335-008-9124-y