Point mutations usually involve a change is just a single nucleotide pair. The first kind is called a base substitution. As its name implies, a base is replaced by an incorrect base. The second kind is actually two kinds: insertions and deletions (the addition or subtraction of nucleotide pairs).
Minnesota Historical Society resources about the history and culture of Minnesotaâs Hmong people. The Hmong â a distinct ethnic group with ancient roots in Chinaâbegan coming to Minnesota in 1975 as refugees from the destructive wars that had ravaged their homelands in Laos. Today, there are more than 66,000 Hmong in Minnesota, and the Twin Cities metro is home to the largest concentration of Hmong in America. For decades, the Hmong have made a profound impact on their adopted home of Minnesota.
Hmong, ethnic group living chiefly in China and Southeast Asia and speaking Hmong, one of the Hmong-Mien languages (also known as Miao-Yao languages). Since the late 18th century, the Hmong alone among the Miao groups have slowly migrated out of the southern provinces of China, where about 2.7 million still remain. See also China: People.