EVERYONE IS MESTIZO TO SOME DEGREE
The American Society of Human Genetics affirms: Genetics exposes the concept of “racial purity” as scientifically meaningless.
Founded in 1948, the American Society of Human Genetics (ASHG) is the primary professional membership organization for specialists in human genetics worldwide. Based on the value of genetic diversity and genetic knowledge related to ancestry and genomic diversity, the ASHG affirms the following:
- Genetics demonstrates that humans cannot be divided into biologically distinct subcategories. Although there are clear observable correlations between variation in the human genome and how individuals identify by race, the study of human genetics challenges the traditional concept of different races of humans as biologically separate and distinct. This is validated by many decades of research.
- Most human genetic variation is distributed as a gradient, so distinct boundaries between population groups cannot be accurately assigned. There is considerable genetic overlap among members of different populations. Such patterns of genome variation are explained by patterns of migration and mixing of different populations throughout human history. In this way, genetics exposes the concept of “racial purity” as scientifically meaningless.
- It follows that there can be no genetics-based support for claiming one group as superior to another. Although a person’s genetics influences their phenotypic characteristics, and self-identified race might be influenced by physical appearance, race itself is a social construct. Any attempt to use genetics to rank populations demonstrates a fundamental misunderstanding of genetics.
- The past decade has seen the emergence of strategies for assessing an individual’s genetic ancestry. Such analyses are providing increasingly accurate ways of helping to define individuals’ ancestral origins and enabling new ways to explore and discuss ancestries that move us beyond blunt definitions of self-identified race.