A biologist wants to use a radioactive isotope of nitrogen to radiolabel certain molecules in a culture of cells she is growing. If the biologist incubates her cells with N-15 ( a heavy isotope of nitrogen), which group of macromolecules will be labeled in the culture of cells?
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Answer:DNA
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The answer will be DNA.
The incubation of the cells with N-15 requires the DNA molecules to work in consonance with the macro molecules. DNA is a double helix, and it is actually a kind of molecule that contains instructions that are extremely important for the development of any organism. The order of nitrogen sequence decides the formation of a new life inside the DNA, and the molecules are so long that they need to be worked on if used for a radioactive isotope.
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