2005 National DNA Day Online Chatroom Transcript
This is just one question from an archive of the National DNA Day Moderated Chat held in April 2005. 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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Do pigs have similar dna as humans?
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Eric Green, M.D., Ph.D.: All free-living organisms have the same fundamental DNA structure -- made up of 4 chemicals, abbreviated G, A, T, and C. Remarkably, the order of these chemicals (the DNA sequence) in the genomes of all mammals is remarkably similar. For example, across the ~3 billion chemical bases comprising the human genome, more than half are identical between humans and pigs (and dogs and mice and rats and cats and so forth). Go figure! |
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