<prompt> Defect in SNURPs causesDefect in 5cappingDefect in addition of poly A tailDefect in splicingDefect in terminal addition of nucleotide  <response>: Spliceosomes : Small nuclear RNA snRNAs takes pa in formation of spliceosomes. All of them located in nucleus. They complex with specific proteins, to form smal nuclear ribonucleoprotein pacles SnRNPs REF : DM VASUDEVAN TEXTBOOK ; 8th EDITION ; Page no:573 