This article originally appeared on The Conversation.
People who are attracted to others of the same sex develop their orientation before they are born. This is not a choice. And scientific evidence shows their parents cannot be blamed. Government Control Health Care Cost? Research proving that there is biological evidence for sexual orientation has been available since the s.
The links have been emphasised by new scientific research. But this argument has never been substantiated, despite the fact that studies have shown that homosexuality is a heritable trait.
Researchers at the University of California San Francisco will use an iPhone app to conduct the largest study on the gay and transgender population. Evidence points towards the existence of a complex interaction between genes and environment, which are responsible for the heritable nature of sexual orientation. The report is the outcome of work conducted by a panel put together in to evaluate all research on the subject of sexual orientation done
Is homosexuality genetic yahoo the last 50 years.
It did this against the backdrop of a growing number of new laws in Africa which discriminate against people attracted to others of the same sex. The work was conducted in conjunction with the Ugandan Academy of Science.
The academy looked at several scientific studies with different focus areas that have all provided converging findings. These include family and twin studies.
The studies have shown that homosexuality has both a heritable and an environmental component. Family studies have shown that homosexual men have more older brothers than heterosexual men. Homosexual men are also more likely to have brothers that are also homosexual. Similarly, family studies show that lesbian women have more lesbian sisters than heterosexual women. Studies on identical twins are important as identical twins inherit the same genes.
The field of psychology has...
This can shed light on a
Is homosexuality genetic yahoo genetic cause. Studies on twins have established that homosexuality is more common in identical monozygotic twins than in non-identical dizygotic twins. This proves that homosexuality can be inherited. However, the extent of the inheritance between twins was lower than expected. These findings contribute to the notion that although homosexuality can be inherited, this does not occur according to the rules of classical genetics.
Epigenetics Likely to be an Important Factor. Epigenetics relates to the influence of environmental factors on genes, either in the uterus or after birth.
The field of epigenetics was developed after new methods were found that identify the molecular mechanisms epi-marks that mediate the effect of the environment on gene expression. Epi-marks are usually erased from generation to generation. But under certain circumstances, they may be passed on to the next generation.
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The process is no longer random and the same
Is homosexuality genetic yahoo is inactivated in these mothers. This suggests that a region on the X-chromosome may be implicated in determining sexual orientation. The epigenetics hypothesis suggests that one develops a predisposition to homosexuality by inheriting these epi-marks across generations. External environmental factors such as medicinal drugs, chemicals, toxic compounds, pesticides and substances such as plasticisers can also have an impact on DNA by creating epi-marks.
This affects the levels of sex hormones in the developing foetus and may influence the activity of these hormones.
Future studies will determine whether these factors may have a direct impact on areas of the developing brain associated with the establishment of sexual orientation. This argument posits that because same-sex relationships do not contribute to the continuation of the species, they would be selected against. If this suggestion were correct same-sex orientations would decrease and disappear with time.
Yet non-heterosexual orientations are consistently maintained in most human populations and in the animal kingdom over time.
The academy found that a multitude of scientific studies have shown sexual orientation is biologically determined. The identification of these chromosomal regions does not imply that homosexuality is a disorder—nor does it imply that there are mutations in the genes in these regions, which still remain to be identified.
Rather, for the first time, it suggests that there is a specific region on a chromosome that determines sexual orientation. Although research has not yet found what the precise mechanisms
Is homosexuality genetic yahoo that determine sexual orientation—which may be heterosexual, homosexual, bisexual or asexual—the answers are likely to come to the fore through continued research. Theresa May facing pummelling from...
These findings will be
Is homosexuality genetic yahoo for the field of genetics and, more importantly, for those attracted to others of the same sex and society as a whole.
Beverley Kramer is an Assistant Dean: North Korea Launches Another Projectile, Possibly a Ballistic Missile, South Says External environmental factors such as medicinal drugs, chemicals, toxic compounds, pesticides and substances such as plasticisers can also have an impact on DNA by creating epi-marks. Future Studies The academy found that a multitude of scientific studies have shown sexual orientation is biologically determined.
"Homosexual behavior should be allowed to take place.
Genes We know, from many twin and adoption studies, that sexual preference has a. However, Yahoo's editors seem to believe that the causes of homosexuality are either genetic or a rational and knowing decision, a choice. The biology of male homosexuality may have been there for centuries as Tel +Email
[email protected] Received.
The field of psychology has extensively studied homosexuality as a human sexual orientation. The American Psychiatric Association listed homosexuality in the DSM-I in , but almost immediately that classification came under scrutiny in research funded by the National Institute of Mental Health.
That research and subsequent studies consistently failed to produce any empirical or scientific basis for regarding homosexuality as anything other than a natural and normal sexual orientation that is a healthy and positive expression of human sexuality. Upon a thorough review of the scientific data, the American Psychological Association followed in and also called on all mental health professionals to take the lead in "removing the stigma of mental illness that has long been associated" with homosexuality.
In , the National Association of Social Workers adopted the same position as the American Psychiatric Association and the American Psychological Association, in recognition of scientific evidence.
The longstanding consensus of scientific research and clinical literature demonstrate that same-sex sexual and romantic attractions, feelings, and behaviors are normal and positive variations of human sexuality. The view of homosexuality as a psychological disorder has been seen in literature since research on homosexuality first began; however, psychology as a discipline has evolved over the years in its position on homosexuality.
Current attitudes have their roots in religious, legal, and cultural underpinnings. Some Ancient Near Eastern communities, such as the Israelites , had strict codes forbidding homosexual activity, and this gave way to later usage of the same texts by the original missionaries of Christianity , who themselves descended from the tribes of Israel ; Paul in particular is notable for his allusion to and reinforcement of such texts in his letters to nascent churches.
Later, the Apostolic Fathers and their successors continued to speak against homosexual activity whenever they mentioned it in their surviving writings.
Enquire of this question, and you thinks fitting probably receive one of two responses: People choose to be gay. They are making an immoral choice, which government should discourage. Sexual preference is biologically determined. Government should protect gay people from discrimination because homosexuality is an unalterable aspect of their identity.
Our genes and our sexuality - Dean Hamer - CDI 2008
Is homosexuality genetic yahoo
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This article originally appeared on The Conversation. People who are attracted to others of the same sex...
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Today, ritual male homosexuality plays an important role in some cultures in New Guinea. The book was first published in German, and a year later it was translated into English. For example, a Catholic mother of a gay man shared that she focuses on "the greatest commandment of all, which is, love".
Archived from the original on 18 November This argument posits that because same-sex relationships do not contribute to the continuation of the species, they would be selected against.
Study Suggests Genetic Link for Male Homosexuality
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THE BIOLOGY OF MALE HOMOSEXUALITY MAY HAVE BEEN THERE FOR CENTURIES AS TEL + , EMAIL [email protected] RECEIVED. THE FIELD OF PSYCHOLOGY HAS EXTENSIVELY STUDIED HOMOSEXUALITY AS A HUMAN SEXUAL ORIENTATION. . HE ALSO... HOMOSEXUALITY AND PSYCHOLOGY - WIKIPEDIA STUDY SUGGESTS GENETIC LINK FOR MALE HOMOSEXUALITY
Is Homosexuality a Choice?
The Royal College of Psychiatrists. Most people with a homosexual orientation who seek psychotherapy do so for the same reasons as straight people stress, relationship difficulties, difficulty adjusting to social or work situations, etc. Evidence points towards the existence of a complex interaction between genes and environment, which are responsible for the heritable nature of sexual orientation.
Retrieved 20 December Epi-marks, the genetic switches that regulate how our genes express themselves, can be passed down from mother to son or father to daughter while the fetuses gestate, the researchers found, adding that certain "sexually antagonistic" epi-marks may also be involved.
Hey Bill Nye, "Does Homosexuality Make Evolutionary Sense?"
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Long, but please help. What is with this girl? The hereditary link of homosexuality has long been established, but scientists knew it was not a strictly genetic link, because there are many. The biology of male homosexuality may have been there for centuries as Tel + , Email [email protected] Received..