Genetics and Diversity

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People from various parts of the world have different features that can be used to identify where they originate. The question of whether or not human races truly exist is now a prevalent one in the scientific community. Some scientists believe that race is biologically meaningless while others believe that race can be used to determine medical treatment for a person (Jorde & Wooding, 2004). Although there are genes that determine the different physical characteristics of people their genetic variation is mainly due their geographic location. There is some biological basis for the phenotypic differences in humans, but the way we define and understand these differences are flawed. There is no individual trait or gene that separates members of one race from all the members of another race (Brace & Gill, 2000).
Race is often used as a predictor for a person’s likelihood to get a disease and the effectiveness of medical treatments. The prevalence of certain diseases is different among populations. There are now opportunities for scientists and physicians to tailor medication to specific groups based on specific genetic variants revealed by genetic tests. This new genomic information is being interpreted based on social labels such as ‘race’ and ‘ethnicity.’ Using race as a determinant of a person’s likelihood to get a disease and as a way to create ‘racialized drugs,’ that are designed for people of a certain race, has some benefits but can be potentially harmful. Some groups are more likely to develop certain diseases than others but a person’s risk for common diseases is determined by an unknown pattern of genetic variants, environmental factors, lifestyle characteristics and some random processes (Rotimi, 2004).
There are both e...

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... Ancestry is a better indicator than race of whether a person carries a disease. Most variation is within, not between races. Two random people of the same race are likely to be as genetically different as two from a different race (Rotimi, 2004).
Whether race is real or not depends on how race itself is defined. There are phenotypic differences among different populations but whether those differences are significant enough is debatable. The patterns of features that we notice in different races can be identified as characteristics of the areas from which they come and where their ancestors have been for thousands of years. We call the differences we see in each other ‘race.’ Race exists as more of a social construction than a significant biological entity. Race has a more social role in society and first came about as a sociocultural construction (Smedley, 1997).

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