One problem with these assignments is admixture. Many people have a highly varied ancestry. For example, in the United States, colonial and early federal history were periods of numerous interracial relationships, both outside and inside slavery. This has resulted in a majority of people who identify as African American having some European ancestors. Similarly, many people who identify as white have some African ancestors. In a survey in a northeastern U.S. university of college students who identified as "white", about 30% were estimated to have up to 10% African ancestry. COUNT 5
QSN1 What is a problem with racial assignments?  ANS1 admixture QSN2 How many people have a varied ancestry? ANS2 Many QSN3 When were periods of numerous interracial relationships in the U.S.? ANS3 colonial and early federal history QSN4 Who do many people who identify as white have for ancestors? ANS4 African QSN5 What percentage of African ancestry were 30% of college students identifying as white estimated to have? ANS5 10%