Which of the Following is True About the Molecule Shown

Question

Which of the following is true about the molecule shown in the following drawing? 
A) Its gene is transcribed by RNA polymerase I. 
B) There are about 50 genes in our genome encoding this type of molecule. 
C) This molecule normally undergoes various covalent modifications. 
D) It is normally composed of about 20 monomers. 
E) Its gene transcript normally undergoes alternative splicing.

Accepted Answer

It is a transfer RNA (tRNA) molecule, which is normally composed of nearly 80 nucleotides, is heavily modified, and is transcribed from one of the ~500 tRNA genes in our genome by RNA polymerase III.