This article describes an easy and cheap laboratory exercise for students to discover their own mitochondrial haplogroup. Students use buccal swabs to obtain mucosa cells as noninvasive tissue samples, extract DNA, and with a simple polymerase chain reaction-restriction fragment length polymorphism analysis they can obtain DNA fragments of…

At approximately 9,500 years old, two sets of human remains from La Jolla, California (W-12), known as the University House Burials due to the physical location of their discovery on property owned by the University of California, San Diego, are some of the oldest in the United States. These burials are central to a repatriation controversy…

Summarizes the revised economic and policy types of the Economic Research Service's rural county classification system. The new typology is based on conditions in more recent years, includes Alaska and Hawaii, redefines persistent poverty, includes more county types, makes economic types nonoverlapping, and classifies counties designated as…