Biological Explanations of Homosexuality

In one article by Marcia Malory, “Homosexuality & Choice: Are Gay People ‘Born This Way’”, she goes into multiple studies on the genetics of a gay child's parents. A study conducted in 1993 the “gay gene” matter arose when it was looked into the homosexual children's parents having a different X chromosome marker. Nonetheless genes do not control our behavior completely as does environment. The brain may also play a role in sexual preference, like the study in 1991 showing the difference in neurons and pituitary glands. Later in the 2000s more studies showed that gay men have more symmetrical hemisphere and amygdala resembles that of women's. The brain develops in the womb and continues through late adulthood. When did a fetus choose its

The scientists’ opinions about the origin of homosexuality differ and neither of them have been proved enough yet. The aim of the present essay is to find out pros and contras for both theories: whether homosexuality is a moral or biological aspect.

A pattern emerges where the scholarly literature exploring this topic is largely focused on males. Reason being is that it appears that males are the sex who are predominantly homosexual in their orientation (LeVay & Baldwin, 2012). However, the sensitivity within the discourse of sexual orientation arises when it is debated upon whether one 's sexual preference is innate at birth, hence a force of nature or biology, or if it is a result of culture, nurture or environmental factors (Emmanuele et al., 2010). Furthermore, an experimental design will be proposed to further examine this topic. Comparing the three chosen studies, it is evident that a biological and endocrinological perspective does account for sexual orientation (Kraemer et al., 2006; Manning et al., 2007; Miller et al., 2008). Of the studies that currently exist on this topic, data shows that prenatal testosterone levels are indicative of sexual orientation (Kraemer et al., 2006; Manning et al., 2007; Miller et al., 2008). This paper addresses a topic that is relevant in today 's society; a topic that has, for the most part, been written off as having any scientific roots (Emmanuele et al., 2010). This paper counters that belief and in reading this essay, it will be evident that biology and endocrinology have a much stronger influence on sexual orientation than previously thought.

A highly debated issue concerning homosexuality is whether sexual-orientation is biologically determined or if it is a socially learned behavior. One case study done about this topic gathered that “the homosexual desire seems in most cases to be implanted in those who develop an unusually strong attachment for one parent” (Cory 1951:67). This seems to suggest that homosexuality can be influenced by family structure or other sociological elements. On the other side of this argument, there is the belief that people are born either gay or straight. Even though there is no scientific or genetic evidence to prove this, there have been many studies done and most homosexuals interviewed take this view-point. McIntosh states, “[homosexuality] is still commonly seen as a condition characterizing certain persons in the way that birthplace or deformity might characterize them” (1968:182). To support their cause and to fight for acceptance in society, it would be beneficial to convince people that sexual orientation is biologically determined. “Research indicates that people who believe that homosexuality is a choice are more likely to condemn it than are those who believe gays and lesbians are born that way”

He contradicted the argument that homosexual behaviour is related to genetic, hormonal or biological disorder. To abolish these views, the author mentions that ‘no school of medicine, medical journal or professional organization has ever recognized such claims (p. 2) - at least at the time he wrote the article in 1994.

Many scientists have a difficult time understanding homosexuality on the evolutionary aspect. They believe a human beings’ main purpose is reproduction, which makes the sexual relationship between two males a confusing concept for most evolutionary thinkers (McKnight 1). Evolutionary thinkers believe that the less desirable genes are removed from the system when they are not breed as often, but this cannot be said for homosexual males who have been a continuing presence in most societies over numerous generations (McKnight 1). These evolutionary thinkers, like most humans, have a need to place others into

Do people have control over their sexual orientation? Many people believe they were born without a choice. In other words, some people believe they were predestined to be homosexual. Homosexuality is defined as the romantic/sexual attraction between members of the same sex. Currently, the cause of homosexuality has not been determined although many speculations have been made. The cause of homosexuality has been disputed for many years. One could argue homosexuality is caused by hormones, genes and/or a type of social deviance. This research paper will offer another alternative. Specifically, it will argue that homosexuality is caused by epigenetics.

Homosexuality is at the front lines of the nature versus nurture debate. Many studies have been conducted, but a clear cause has yet to be found. Anti-homosexuals, consisting mainly of religious groups, believe that homosexuality is abnormal, unnatural, and can be changed. Because of their beliefs, homosexuality must be a learned behavior. Whether homosexuality is biological or learned behavior is still a mystery, but scientists are finding more evidence to suggest the former.

The research article suggests a structure within the human brain and a genetic link indicate the biological factor for male homosexuality. The journal investigates an experiment about the role of male genetics in sexual orientation by analysing the hypothalamus in autopsy specimens from homosexual and heterosexual men. Increased possibilities of same-sex orientation were discovered in the maternal male cousins and uncles of the participants, instead of their father or parental relatives. Also, the researchers discovered a brain cell group ‘INAH’ had a potentiality of being the sex-orientated DNA, indicating that the reason of homosexuality may be related to genetics.

There are multiple theories people hold on how they believe homosexuality started or is generally caused. However, after multiple studies and ongoing research the likelihood that it is nature, rather than nurture, based is going strong. Although, as of now, there has been no exact consensus among researchers, after examining possible genetic, hormonal, developmental, social, and/or cultural influences, to prove that homosexuality is completely one or the other, but it is usually found that people cannot choose their sexual orientation, but rather only

Science is uncovered origins a lot of things over the centuries and the human created much great inventions and even explored the surface of the moon; however, one question still on everyone’s mind and science may have solved one of greatest mysteries yet which is: how did homosexuality and heterosexuality evolve? Many psychologist, biologist and scientist may agree with sexual orientation is output from a combination of biological, hormonal, environmental and emotional factors and those many factors that influence to a development of human sexual orientation. However, being homosexual or bisexual is not mentally ill or abnormal in certain ways, although sexual minority is part of social problems that makes output from misinformation or prejudicial attitude. Diversity in sexual orientation has been a subject that has been seen in different perspectives by the different people (LeVay, 2010). Today there are the homosexuals, heterosexuals and bisexuals orientated people are forming a part of our society. This paper conduct an overall study of important and strong factors and provides accurate information and explanation for those who want to better understand development of sexual orientation.

Many people now believe the reporting of many popular newspapers and magazines report of the "discovery" of a link between a certain gene and homosexuality, but hasn't it been considered a choice for such a long time? Is homosexuality a choice rather than genetic? To answer this question we'll start off by revealing some myths of homosexuality. The next part will explain the difference between a behavioral trait and a genetic trait. Finally I'll end be unveiling the truth behind the "homosexual gene."

Homosexual behavior and lifestyle have negative effects on human health and society. In this paper I will examine homosexuality, and investigate the arguments so to whether homosexuality has a negative impact on human health and society

The nature and nature of homosexuality is heavily debated. Some people believe that homosexuality is biologically determined and others believe it’s base on ones environment. This topic can be argue to be base on both nature and nurture. Studies conducted in the past decades support both the biological and environmental aspect of homosexuality.

The question of what causes some people to be sexually attracted to members of their own gender generates many different answers. In recent years, startling new research (Barinaga, 1993, p.17) has indicated that homosexuality is possibly inherited and determined by biological differences in Brain structure and genes. This study raises an interesting question: If homosexuality is hereditary, is there any basis for societal discrimination against something innate? If it is nature, it is good. If it is good, it should be accepted. A genetic component in sexual orientation would send a message to homosexuals and the society that homosexuality is not a fault, and not the fault of anyone other than nature. Gays and lesbians are born in nature, just like some people who are inherited left-handed gene from their parents.