Digital Biology Friday: the answer to last week's puzzle

<< Return to the Archive

Share to: 
Sandra Porter
Last Friday, we had another in the series of weird DNA structures. (You can see the first here). I asked the audience to identify the unusual feature in this molecule. Here's the first picture:


Here's the answer: Steve L. guessed it correctly. This is not just DNA, it's a DNA:RNA hybrid. I circled a 2' hydroxyl group here to make it easier to see the difference. (Remember - the "D" in DNA stands for "deoxy.") The oxygens are red and it's easiest to tell the difference between the strands if you count them.
For extra credit - where might you find this kind of thing in nature?

Privacy     |     Using Molecule World Images    |    Contact

2019 Digital World Biology®  ©Digital World Biology LLC. All rights reserved.