36. Spliceosome is found primarily within the nucleus of eukaryotic cells. Which of
the following descriptions about the spliceosome is not correct?
(A) Spliceosomes splice the introns out of pre-mRNA and seal the exon ends
(B) The spliceosomes consist of DNA-protein complexes called small nuclear
ribonucleoproteins (snRNPs).
(C) The five snRNPs involved in splicing are U1, U2, U4, U5, and U6. Together with
some additional proteins, the snRNPs form the spliceosome.
(D) All the snRNPs except U6 contain a conserved sequence that binds the Sm
proteins.
(E) Splicing factor - A protein component of the spliceosome that is not part of one
of the snRNPs.
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