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File:A-DNA, B-DNA and Z-DNA.png

Description From left to right, the structures of A-, B- and Z-DNA. The structure a DNA molecule depends on its environment. In aqueous enviromnents, including the majority of DNA in a cell, B-DNA is the most common structure. The A-DNA structure is dominates in dehydrated samples and is similar to the double-stranded RNA and DNA/RNA hybrids. Z-DNA is a rarer structure found in DNA bound to certain proteins.
Date 9 February 2007
Source Originally from en.wikipedia; description page is/was here.
Author Original uploader was Richard Wheeler ( Zephyris) at en.wikipedia
( Reusing this file)

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