Identical twins possess exact copies of each other’s DNA, and are essentially clones of each other. As such [clones], they may help us to understand some aspects of human clones (Levick, 2004). Trends in the psychological development of twins suggest that a person’s environment influences an individual and can alter their personal growth. By further exploring the psychological impact of having an identical twin, scientists hope to discover how clones will mature. Multiple studies and observations have indicated that the varying genes and environments of each twin can influence many aspects of psychological development such as falling in love, aging, personality development, talents and abilities, body characteristics, health, and physiological responses (University of Minnesota).
(Lewis,1997, p. 133) The greater the genetic contribution to the expression of a trait, the greater the chance of inheriting that trait. (Stine, 1989, p.151) Studies have shown that behaviour can be inherited in more than one way. In the 1980’s, researchers who attempted to isolate the gene that caused bipolar affective disorder identified three different chromosomes that predispose a person to this very distinct behaviour pattern, however association of one gene with one behaviour is usually only partially conclusive. (Deering, 2014) Behaviour depends on the interaction of multiple gene sequences with environmental in... ... middle of paper ... ...ct link with this research and human behaviour, scientists believe that it is possible for homosexuality to be genetic. Works Cited Deering, R. 2014.
Behavioral Genetics Behavioral Genetics is a new field of study. The purpose of Behavioral Genetics is to investigate the affects of genetics and environment on individual human behavior. Behavioral Genetics is a quite complex field of study and the path towards the understanding the relation of genetics and environment to individual human behavior is a long and difficult one. There are instances that support the theory that behavior has a biological basis. Behavior is often reproduced in consecutive generations of a species.
The prevalence of whether personality is influenced by genetic or environmental factors has continued soar over the last few decades. The main aim of this study is to help clarify the doubts of how genes, environment and the gene-environment interaction contribute to every individual’s personality traits. In order to have a clearly view of this argument, a combination of studies and theories have been brought up. These include, the twin studies, the Big Five theory and adoption studies, which supports the genetic view of personality. This is then followed by, the social-cognitive approach, reciprocal determinism and the Five Factor Theory, which supports the environmental view of personality.
Instead, because each side makes such a valid point, many people think personality development is created through a little bit of both- nature and nurture. Outside influence and genetics collectively form how an individual's personality is developed. Personality development isn’t just black and white, it’s a combination of environmental influence and genetics. It’s a matter of how much of each influence the person we become. The question now, instead of being is personality development based on nature or nurture, is which one is more important to the development if they both contribute (McLeod, 1970).
Emphases will be established about nature verses nurture by studies conducted in the psychology community. Results implicated genetic traits were more profound than environment. Theoretically, our genes help to determine the decisions and outcomes of everybody experiences. This held true throughout the different conclusions, bringing about the idea
The pros of this theory are that there is tons of research backing up these claims and the emphasis on the genetics behind personality can not only aid in predicting future behaviors but can also predict future health problems. According to Vedhara et al. (2015), they discovered that extraversion was connected to an increased expression of a pro-inflammatory gene (CTRA gene) and conscientiousness was linked to a reduced expression of the same pro-inflammatory gene. Whether the expression is increased or reduced, if the gene is not balanced the individual could either have an overactive immune system or an immunocompromised immune system. This study illustrates how the biological theory can aid people in possibly predicting their future health problems just by determining what kind of personality traits they possess which is an appealing advantage.
While nurture has some influence, nature has much more. Genes are responsible for altruism, personality is linked to individual genes, and genetic disorders are effects of nature that can cause drastic differences in quality of life. Genetics determine more of human development than environment. Nature is what determines altruism, personality, and genetic disorders. Much work and research has been done to support this, with various studies on each topic, like altruism.
However, recent claims of biological determinism seem to be more outstanding and more scientific. The most well-known version of genetic determinism is sociobiology, advocated by E. O. Wilson. The theory is: “social behavior is determined biologically through our genes, which are in turn the products of million years of evolution.” Tiger, Fox and Wilson all argue that it is natural for males to be more aggressive and dominant than females. Although Wilson admits that men and women can choose to behave differently from those which he says are natural, but he says that if they do, they will cause society problems because they’re going against what they’re supposed to naturally do. Therefore, this implies that it’s useless to fight for women’s equality because men and women are born different and unequal.
Both of these studies contributed heavily to the Nature versus Nurture debate as both demonstrate that both genetics and environment play a large role. This further enables researcher’s to shift focus on to how much is genetics and/or environment in involved in development as opposed to purely debating Nature or Nurture.