[Solved] Down syndrome is associated with which of the following karyotypes? A) 47, XXY B) 47, XXX C) 46, XY D) 47, XY, trisomy 21 E) 45, XO Immigrant Success: The achievement of socio-economic stability, integration, and fulfillment of personal goals by individuals who have relocated from their country of origin to a new country. U.S. Economy: The economic system of the United States, characterized by a mixed economy that supports both private and public enterprise. Legal and Illegal Immigrants: Terms used to distinguish between immigrants who have authorization to reside in a country and those who enter or stay without permission. Native-born American Families: Native-born American families are those whose members were born in the United States, distinguishing them from families that have immigrated and became naturalized citizens.