Multiple choice Small nuclear RNAs (Sn RNAs) are involved in the eukaryotic transcription replication reverse transcriptase transfer of amino acid splicing of mRNA Reveal answer Fill a bubble to check yourself E Correct answer Explanation Splicing is a modification of the nascent pre-messenger RNA (pre-mRNA) transcript in which introns are removed and exons are joined. In this process, snRNAs are used.