Using Genetic Testing and Historical Records to Document Ancestral Heritage

Using Genetic Testing and Historical Records to Document Ancestral Heritage

Using Genetic Testing and Historical Records to Document Ancestral Heritage Hannah Bromberg Division of Math, Science and Technology Farquhar College of Arts and Sciences Faculty Advisor: Dr. Emily Schmitt Abstract Genetic testing to find specific changes in DNA (molecular markers) can be performed in order to determine the geographical location of one's ancestral heritage. Maternal lineage can be traced through mitochondrial DNA (mtDNA) passed from mothers to children, while paternal lineages can be traced through Y-chromosomal DNA passed from fathers to sons. These molecular markers have been analyzed to recreate migration patterns that humans embarked upon when leaving Africa approximately 50,000 years ago. For this project, DNA was collected from a cheek swab sample in order to carry out mt DNA tests as well as Y -chromosomal tests. Since the author of this project is female, she was only able to test for mitochondrial DNA and therefore her father provided a cheek swab sample to be used for Y- chromosomal DNA analysis. Samples were sent to National Geographic's Genographic Project for analysis (www.genographic.nationalgeographic.com). DNA was categorized into haplogroups defined by specific genetic markers that allowed the author to trace her ancestors migrational pattern as they left Africa. In Order to create an original family tree and family history narrative based on more recent historical documents, the author used census reports from 1900-1930. These reports provided information including occupations and years of immigration to the United States. Draft cards, naturalization papers and obituaries supplied additional facts that offered further insights into the lives of the author's ancestors.