Discuss the evidence for biological influence

Hemoglobin, in contrast, is made of up four chains: Sexual identity, monozygotic twins reared in discordant sex roles and a BBC follow-up. According to Dean Hamer and Michael Bailey, genetic aspects are only one of the multiple causes of homosexuality. The interview included whether the participants themselves had eating disorders and if they were suffering from mood, anxiety and any personality disorders.

Bell, Weinberg, and Hammersmith in the United States and Siegelman a, b in Great Britain looked for features that might distinguish the family constellations and social backgrounds of adult heterosexuals, homosexuals, and bisexuals.

Title: Biological Aspects of Sexual Orientation and Identity

Where does this emphasis on sexual orientation come from? At a basic level, it must be recognized that any behavior is dependent on some encoding within the nervous system. It was also suggested that adopted children who both biological and psychological parents came from criminal backgrounds are more likely to develop antisocial personality disorder.

This comes about from adrenal malfunctions of the fetus congenital adrenal hyperplasia, CAH or metabolic problems of the mother e.

A controlled family study of adolescent suicide victims. The investigators inquired of the sexual orientation of all siblings and found that if a family contained one son who was homosexual, 18 to 25 percent of his brothers would also be homosexual.

It is the remnant of the second X chromosome in females; only one is typically functional. Believing that male identity requires a penis, it was decided to rear the individual as a female and augment the upbringing with surgical and endocrine treatment.

Scientists call such structures homologies and have concluded that they are best explained by common descent. A bat wing, a mouse forelimb, and a human arm serve very different purposes, but they have the same basic components The similarities arise because all three species share a common four-limbed vertebrate ancestor Page 15 Share Cite Suggested Citation: Bell, Weinberg, and Hammersmith cautiously conclude: If an XY individual is brought up as boy, the transsexual feels to be a girl and wishes to develop into a woman.

InDick Swaab and Michel A. Almost invariably these individuals are brought up in accordance with their bodily appearance. Such has been adequately demonstrated in animal experimentation. The code used to translate nucleotide sequences into amino acid sequences is essentially the same in all organisms.

Exposure to violence in the community had similar cognitive effects as experiencing childhood maltreatment or trauma. Research, particularly in the Netherlands with the work of Slob and associates Bakker and Brand and in Sweden in the laboratories of Larsson and Vega-Matuszcyk see References for the work of these authorshas shown that paranatal hormone manipulation during a critical period not only induces the changes noted but also significantly alters the development of sexual partner preference.Discuss the biological approach in psychology.

Refer to at least one other approach in your answer. (12 marks) The biological approach focuses on both the physiological and evolutionary aspects which explain human behaviour.

Discuss the Evidence for Biological Influence on Personality Essay

The causal level of analysis incorporates physiological explanations, such as the effect of nerves and hormones on behaviour. Dec 09,  · The evidence suggests we are destined to behave according to your biological characteristics.

Even if the evidence is true it does not mean that we are destined to do what our genes influence us to, other factors are more envservprod.coms: 9.

III Evidence for a Genetic Basis of Antisocial Behavior. A large number of twin, family, and adoption studies using the classical approach have provided abundant evidence for both genetic and environmental influences on antisocial behavior.

The relationship between biology and sexual orientation is a subject of research. has theorized that the influence of biological factors on sexual orientation may be mediated by experiences in childhood. A child's temperament predisposes the child to prefer certain activities over others.

Dean H. (). "Evidence for a Biological. The evidence that Darwin found for the influence of geographical distribution on the evolution of organisms has become stronger with advancing knowledge. For example, approximately 2, species of flies belonging to the genus Drosophila are now found throughout the world.

Discuss the Evidence for Biological Influence on Personality Essay In the early s, Edward Thorndike decided to do comparative studies of twins, siblings, and unrelated individuals of family histories and school eliminations - Discuss the Evidence for Biological Influence on Personality Essay introduction.

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Discuss the evidence for biological influence
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