2010 National DNA Day Online Chatroom Transcript

This is just one question from an archive of the National DNA Day Moderated Chat held in April 2010. 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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Is there any organisms, that you know of, that has more than a double helix for DNA, such as a triple helix?
     Heidi Parker, Ph.D.: I currently study the genetics of the dog in an effort to answer questions about disease in both dogs and humans. None that I know of. As far as I know a triple helix can only be created in the lab.
Westview High School in CA (9th grade student)

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