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2008 National DNA Day Online Chatroom Transcript

This is just one question from an archive of the National DNA Day Moderated Chat held in April 2008. 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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When someone has a disorder is it possible for it to be found on more than one chromosome
     Don Hadley, M.S., C.G.C.: Researching the components of a genetic counseling session, including how people are informed of genetic disorders and how they make decisions regarding genetic testing. Some disorders can be caused by mutations in different genes located on different chromosomes. One example is a disorder called Hereditary Nonpolypsis Colorectal Cancer (HNPCC) THere are 5 genes that have been associated with this cancer syndrome. So a person who has HNPCC may have a mutation in any one of genes and can cause this disease.
Abbeville High School in SC (12th grade student)


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