Of the biologically important functional groups listed below, which is not reactive but serves as a tag or marker?

Name: Of the biologically important functional groups listed below, which is not reactive but serves as a tag or marker?
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Quizplus · Accepted Answer

The methyl functional group is not typically reactive, but instead serves as a tag or marker on larger biomolecules. This group is often used to modify DNA or proteins, for example, by adding a methyl group to a specific nucleotide or amino acid residue.

Of the Biologically Important Functional Groups Listed Below, Which Is