If 14C-labelled uracil is added to the growth medium of cells, what macromolecules will be labelled?
A) DNA
B) RNA
C) both DNA and RNA
D) polypeptides

Name: If 14C-labelled uracil is added to the growth medium of cells, what macromolecules will be labelled? A) DNA B) RNA C) both DNA and RNA D) polypeptides
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Question

Quizplus · Accepted Answer

Uracil is a component of RNA, not DNA or polypeptides. Therefore, adding 14C-labelled uracil to the growth medium will result in labelling of RNA molecules within the cells.

If 14C-Labelled Uracil Is Added to the Growth Medium of Cells