DNA STRUCTURE

3. Primary structure

A-T dimer

Figure 1

Nucleosides are link together by phosphodiester linkages to form a single strand as shown in Figure 1 and Figure 2 (A-A-A) . The phosphate ester links the 3' and 5' oxygens of  two sugars.

Download chime

The DNA single strand can be represented in a simple way by its base sequencing. The base sequence contains the encoded genetic information


a single DNA strand

 

fleche.GIF (105 bytes)  4. Secondary structure

The University of Southern California does not screen or control the content on this website and thus does not guarantee the accuracy, integrity, or quality of such content. All content on this website is provided by and is the sole responsibility of the person from which such content originated, and such content does not necessarily reflect the opinions of the University administration or the Board of Trustees