"The results of the tests of genomic ancestry are quite different from the self made estimates of European ancestry", say the researchers. In general, the test results showed that European ancestry is far more important than the students thought it would be. The "pardos", for example, thought of themselves as ⅓ European, ⅓ African and ⅓ Amerindian before the tests, and yet their ancestry was determined to be at over 80% European. The "blacks" (pretos) of the periphery of Rio de Janeiro, according to this study, thought of themselves as predominantly African before the study and yet they turned out predominantly European (at 52%), the African contribution at 41% and the Native American 7%. According to another autosomal DNA study (see table), those who identified as Whites in Rio de Janeiro turned out to have 86.4% – and self identified pardos 68.1% – European ancestry on average (autosomal). Pretos were found out to have on average 41.8% European ancestry. Another study (autosomal DNA study from 2010) found out that European ancestry predominates in the Brazilian population as a whole ("whites", "pardos" and "blacks" altogether). European ancestry is dominant throughout Brazil at nearly 80%, except for the Southern part of Brazil, where the European heritage reaches 90%. "A new portrayal of each ethnicity contribution to the DNA of Brazilians, obtained with samples from the five regions of the country, has indicated that, on average, European ancestors are responsible for nearly 80% of the genetic heritage of the population. The variation between the regions is small, with the possible exception of the South, where the European contribution reaches nearly 90%. The results, published in the American Journal of Human Biology by a team of the Catholic University of Brasília, show that, in Brazil, physical indicators such as skin colour, colour of the eyes and colour of the hair have little to do with the genetic ancestry of each person, which has been shown in previous studies"(regardless of census classification) "Ancestry informative SNPs can be useful to estimate individual and population biogeographical ancestry. Brazilian population is characterized by a genetic background of three parental populations (European, African, and Brazilian Native Amerindians) with a wide degree and diverse patterns of admixture. In this work we analyzed the information content of 28 ancestry-informative SNPs into multiplexed panels using three parental population sources (African, Amerindian, and European) to infer the genetic admixture in an urban sample