Radioisotopes Are Frequently Used to Label Molecules in a Cell

question 2

Multiple Choice

Radioisotopes are frequently used to label molecules in a cell.The fate of atoms and molecules in a cell can then be followed.Assume Saccharomyces cerevisiae is grown in a nutrient medium containing the radioisotope ³⁵S.After a 48-hour incubation,the ³⁵S would most likely be found in the S.cerevisiae's

• A)carbohydrates.
• B)nucleic acids.
• C)water.
• D)lipids.
• E)proteins.

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