The specificity of initiator $$tRNA$$  but absent in elongator $$tRNA\,\left( {tRNA_m^{met}} \right)$$    is conferred by

A. DNA primase B. Primase C. Primer synthase D. All of the above

A. RNA editing B. Antisense RNA C. RNA splicing D. All of the above

A. B-DNA B. A-DNA C. Z-DNA D. All of the above

A. 5' → 3' phosphodiester bonds B. H₂ bonds C. Phosphorylated ions D. Covalent bonds