3. Chemical Principles of Microbiology
Isotopes
Problem 2.2a
Textbook Question
Textbook QuestionRadioisotopes are frequently used to label molecules in a cell. The fate of atoms and molecules in a cell can then be followed. This process is the basis for questions 1-3.
If Pseudomonas bacteria are supplied with radioactively labeled cytosine, after a 24-hour incubation period this cytosine would most likely be found in the cells’
a. carbohydrates.
b. DNA.
c. lipids.
d. water.
e. proteins.
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