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Biochemistry General 535bf03d

Which of the following does not require 5'capping?

A
tRNA of alanine
B
mRNA for histone
C
U6 snRNA
D
siRNA
High-Yield Explanation
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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