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Race is a categorization of humans based on shared physical or social qualities into groups generally viewed as distinct within a given society. [1] The term came into common usage during the 16th century, when it was used to refer to groups of various kinds, including those characterized by close kinship relations. [2]
According to an survey of the Brazilian Institute of Geography and Statistic, to define their own race, Brazilians take into account skin color (73.8%) and family origin (61.6%), as well as physical features (hair, mouth, nose), mentioned by 53.5%. For 24.9%, culture and tradition also play a role in classification, along with economic origin ...
[1] [2] Instead, the concept of 'race' is viewed as a social construct. [3] This means, in simple terms, that it is a human invention and not a biological fact. The concept of 'race' has developed over time in order to accommodate different societies' needs of organising themselves as separate from the 'other' ( globalization and colonization ...
Genetic studies of traits and populations have been used to justify social inequalities associated with race, [7] despite the fact that patterns of human variation have been shown to be mostly clinal, [8] with human genetic code being approximately 99.6% – 99.9% identical between individuals and without clear boundaries between groups. [9] [10]
At that time, direct sequence data from the human genome was not sufficiently available, so he instead used 17 indirect markers, including blood group proteins. Lewontin found that the majority of the total genetic variation between humans (i.e., of the 0.1% of DNA that varies between individuals), 85.4%, is found within populations, 8.3% of ...
Stephen Hawking is a supporter of space travel, in part, because he thinks the survival of humanity depends on it. Hawking shared these thoughts in an afterword for Julian Guthrie's book "How to ...
Measuring Race and Ethnicity Across the Decades: 1790-2010 United States Censuses. The exact terminology of racial groups changes over time. In the United States census, the US Census Bureau and the Office of Management and Budget (OMB) define a set of self-identified categories of race and ethnicity chosen by residents, with which they most closely identify.
The United States has a racially and ethnically diverse population. [1] At the federal level, race and ethnicity have been categorized separately. The most recent United States census recognized five racial categories (White, Black, Native American/Alaska Native, Asian, and Native Hawaiian/Other Pacific Islander), as well as people who belong to two or more of the racial categories.