Abstract
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 different sizes that can be visualized in agarose gels. The analysis of these fragments can reveal the mitochondrial haplogroup of each student. The results of the exercise can be used to provide additional insights into the genetic variation of human populations.
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