I've had some requests for some more molecular puzzles since the last one that I posted (see A DNA puzzle ). One person liked it so much he even blogged about it.
So, here's one for you to chew on over the weekend.
This puzzle is a variation of an activity in Exploring DNA Structure, a CD/lab book that I made (with funding from the NSF) and used for some educational research.
tags: DNA structure, DNA , molecular structure, biochemistry
Any ideas?

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Comments
I'm going to hazard a guess and posit that it is A-DNA. B-DNA has a central axis of H-bonding and Z-DNA is left-handed, and has nucleotides spaced farther apart.
I am not, however, going to posit that my hazarded guess completely correct.
Posted by: Toaster Sunshine | July 27, 2007 11:52 PM
Is that an oxygen I see attached to the 2' carbons on the right hand strand?
Kind of looks to me like RNA hybridized to DNA.
Posted by: Steve Loughran | July 29, 2007 8:19 AM
Interesting guesses.
I'll post the answer on Friday.
Posted by: Sandra Porter | July 30, 2007 11:41 AM