Multiple choice

Which of the following snRNAs recognizes and binds to the sequence of the 5'-splice site of an intron in a strand of pre-mRNA?

  1. U1 spliceosomal RNA

  2. U2 spliceosomal RNA

  3. U4 spliceosomal RNA

  4. U5 spliceosomal RNA

  5. U6 spliceosomal RNA
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A Correct answer
Explanation

U1 spliceosomal RNA is the small nuclear RNA (snRNA) component of U1 snRNP (small nuclear ribonucleoprotein). Splicing or the removal of introns, is a major aspect of post-transcriptional modification. The U1 snRNP recognizes and binds to the sequence of the 5'-splice site of an intron in a strand of pre-mRNA.  

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