This episode critically examines the contemporary science particularly genetics that tends to challenge the assumptions of common sense that makes us believe that human can be categorized into fundamental groups based on the physical traits. In the episode, a dozen students including Asian string players and Black Africans who compare and sequence their DNA to determine their similarities. They later realize that they have closet genetic matches despite their differences in skin color. The differences in people such as hair texture, skin color, and blood group are all influenced by different genes that are independently inherited from one another. However, the presence of a gene does not imply the existence of other genes. Therefore, racial profiling is genetically inaccurate. The genetic variations are evident in any local population. Beneath the skin, there is a similarity in all the species. However, some forms of a gene are more common in some populations than in other populations such as those genes that control disease inheritance and skin color. DNA, therefore, does not show the racial ancestry. It is the history of mating and moving that is responsible for the difference of people of either the same race or different race. Genetic variation is not biological, but greatly reinforces race as a human invention that was deliberately created to bring the social inequality among the people. There is no single trait, gene or characteristic that can be used to distinguish people of different races. Racial beliefs have always been associated with social policies and ideas. In as much as a race may not be a biological issue, it still remains a powerful social idea that has actual consequences in the lives of people all over the world.
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