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How Spliceosomes Process RNA

View the animation below, then complete the quiz to test your knowledge of the concept.






1The snRNPs are also called
A)smurfs.
B)snurps.
C)snores.
D)snippets.
E)splits.



2Which of the following do snRNPs bind to?
A)exon only
B)exon and the 5' end of the intron
C)5' end of the intron only
D)3' end of the intron only
E)5' and 3' ends of the intron



3Which of the following statements about RNA splicing is FALSE?
A)it removes the introns
B)it is performed by the spliceosome
C)it shortens the RNA molecule
D)it always occurs in the nucleus
E)all of the above statements are true



4The cutting out of the intron involves the formation of a loop in the mRNA.
A)True
B)False



5Only a few eukaryotic genes contain introns.
A)True
B)False







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