Suppose You Carry Out a DNA-Editing Experiment Using CRISPR in Which

question 18

Multiple Choice

Suppose you carry out a DNA-editing experiment using CRISPR in which the editing template DNA has strands labeled with the heavy nitrogen isotope ¹⁵N. The experiment is carried out in the presence of the normal light isotope ¹⁴N. Then the expected isotope content of the strands in the edited region of the target DNA would be:

• A)both strands labeled with ¹⁵N.
• B)both strands labeled with ¹⁴N.
• C)one strand labeled with ¹⁴N and the other with ¹⁵N.
• D)None of the answer options is correct.

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