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  4. Intron transcripts in heterogeneous nuclear RNA (hn RNA) are removed and exons transcripts joined together under direction of protein complexes, these complexes are

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Q. Intron transcripts in heterogeneous nuclear RNA (hn RNA) are removed and exons transcripts joined together under direction of protein complexes, these complexes are

VMMC MedicalVMMC Medical 2014

Solution:

Heterogeneous nucleus RNA (nRNA) undergoes the process of splicing. Splicing is the controlled excision of introns from the transcript and rejoining of remaining fragments called exons. A smallar nuclear RNA (snRNA) is involved in RNA, splicing. The snRNAs form a macromolecular complex called spliceosome.