



The structure provided for the 4-Chloro-1,3-dinitrobenzene does not match its name; instead, the structure shown corresponds to another compound. The naming convention should accurately reflect the substituent positions indicated by the structure.
In a messenger RNA molecule, untranslated regions (UTRs) are present at:
I. 5' end before start codon
II. 3' end after stop codon
III. 3' end before stop codon
IV. 5' end after start codon