2009 National DNA Day Online Chatroom Transcript

This is just one question from an archive of the National DNA Day Moderated Chat held in April 2009. The NHGRI Director and many genomics experts from across NHGRI took questions from students, teachers and the general public on topics ranging from basic genomic research, to the genetic basis of disease, to ethical questions about genetic privacy.

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I have heard in the past about a triple helix. Is that plausible?      Michael Dougherty, PhD: I'm the director of education for the American Society of Human Genetics. I help to educate people about the importance and role of genetics in their lives. DNA can form local areas of triple helix, which may have important functions, but most DNA exists in the familiar double helix. Triple helices are found in some fibrous protein, such as collagen. Arrowhead High School in WI (10th grade student)

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