Ans: A. tRNA of alanineSmall nuclear RNAs contain a unique 5'-caps. Sm-class snRNAs are found with 5'-trimethylguanosine caps, while Lsm-class snRNAs are found with S'-monomethyl phosphate caps.mRNAs do have a 7-methylguanylate cap, abbreted m7G.tRNAs and rRNAs don't require 5' capping. They have other modifications.
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