Abstract
The degree of replacement of thymine by 5-bromouracil in the deoxyribonucleic acid (DNA) of the thy mine-deficient bacterium Escherichia coli B 15 T- has been determined by a nondispersive x-ray fluorescence method. A measure of the fraction by weight of bromine in the purified DNA is required for determining the degree of thymine replacement. This fraction is experimentally determined on 35-μg samples of DNA by x-ray spectroanalysis.
| Original language | English |
|---|---|
| Pages (from-to) | 1670-1673 |
| Number of pages | 4 |
| Journal | Science |
| Volume | 142 |
| Issue number | 3600 |
| DOIs | |
| State | Published - 1963 |
| Externally published | Yes |