... our personal history or from convergence of these? Is it for that matter a choice rather than a compulsion? Chances are no one factor or study can alone explicate and clarify the human sexual orientation. However, there are evidences that prove being gay is not a choice. The nature of homosexuality ... instance, if there is a male rat has a injury medial preoptic area, he apparently couldn't indifferent to sex with another female. From the study of Gorski and his co-workers, we now know the androgen is the typical male hormone and the estrogen is the female hormone played a major ... the...

• Word Count: 2425
• Approx Pages: 10
• Has Bibliography
• Grade Level: Undergraduate

... it is conceivable to assume that all children will eventually display similar behavior. To examine another theory, Dean Hamer, a geneticist at the National Institute of Health, has found evidence that biology could play a part in determining violent behavior (Pool, 1997). He found that low serotonin levels in the brain contribute to violent tendencies. So which theory explains Kinkle's outburst of seemingly ... cited. Based on biblical reference, these particular individuals interpret that being homosexual is purely a conscious decision, and could not possibly be genetic. Through testin...

• Word Count: 1595
• Approx Pages: 6
• Has Bibliography
• Grade Level: Undergraduate

... she may attempt suicide, the leading cause of un-natural death in the United States. Feelings of depression are not solely brought on by biological factors. Genetics, the branch of biology that deals with heredity, often play a huge role in whether or not a person will be depressed. A person may feel as if his or her life is in shambles, and the ... . The theory that biological and genetic factors are the most influential elements in perpetuating depression makes sense because depression is a mental disorder and most mental disorders are heavily influenced by biology and genetics. Inheri...

• Word Count: 2220
• Approx Pages: 9
• Has Bibliography
• Grade Level: Undergraduate