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Discovering Biology in a Digital World

My thoughts on biology, teaching, life, and exploring the living world via the digital one. Only my opinions are represented by these postings, they do not represent the viewpoints of any funding agency or Geospiza, Inc.

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Sandra Porter I am a microbiologist and molecular biologist turned tenured biotech faculty turned bioinformatics scientist turned entrepreneur. My passion is developing instructional materials for 21st century biology (Geospiza Education).

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    Digital Biology Friday: More puzzling structures

    Category: Chemistry & BiochemistryDigital Biology FridaysScience educationclassroom activitiesmolecular structures
    Posted on: July 27, 2007 4:17 PM, by Sandra Porter

    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: , , ,

    Any ideas?

    dna_odd.gif

    Comments

    #1

    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

    #2

    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

    #3

    Interesting guesses.

    I'll post the answer on Friday.

    Posted by: Sandra Porter | July 30, 2007 11:41 AM

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