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Nucleic Acids as Genetic Material

  1. Burke H Judd

Published Online: 19 APR 2001

DOI: 10.1038/npg.els.0000807

eLS

eLS

How to Cite

Judd, B. H. 2001. Nucleic Acids as Genetic Material. eLS. .

Author Information

  1. Chapel Hill, North Carolina, USA

Publication History

  1. Published Online: 19 APR 2001
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Figure 1. Escherichia coli cell infected with a T2 virus that is double-labelled with radioactive isotopes, 35S in the protein coat and 32P in the DNA. Results of infection and removal of protein coats shows that it is the DNA that carries the information necessary for viral replication.

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Figure 2. A DNA molecule showing two strands of opposite orientation arranged as a double helix. Pairing by virtue of hydrogen bonds (-----) between purine bases on one strand with pyrimidine bases on the other, and their covalent attachments to the phosphate (P) and deoxyribose sugar (S) backbone, shows the three-dimensional relationships of these components.