On April 22nd, 2008, twenty-eight Biology
2 students conducted an experiment in advanced
genetics at the renowned Dolan DNA Learning Center
(part of the Cold Spring Harbor Laboratory System).
Using sophisticated laboratory equipment, the
students extracted their own DNA and isolated a
strand of “junk DNA” from Chromosome 16. Their DNA
was amplified through the process of Polymerase
Chain Reaction and analyzed through Gel
Electrophoresis.
Ultimately, it was discovered that approximately
forty percent of the class shared a common ancestor
(dating back approximately 10,000 years), as
evidenced by the presence of the “Alu” gene
insertion on their Chromosome 16. Overall, the trip
was a unique experience to learn not only about the
techniques of genetic testing but also of the ties
that bind us all. The class’s gel electrophoresis
results can be found at the following link:
http://www.dnalc.org/field_lab/view/april2008/3267
Bishop Loughlin Memorial High School
357 Clermont Avenue * Brooklyn, New York 11238 * Tel. 1-718-857-2700
