Multiple Choice
In eukaryotic mRNA, sequences found in the mature mRNA are termed:
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10. Transcription
RNA Modification and Processing
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Which of the following statements is true of eukaryotic pre-mRNA processing?
A
A 5′ cap is added to the pre-mRNA, introns are removed by the spliceosome, and a 3′ poly(A) tail is added.
B
Prokaryotic mRNAs are processed by addition of a 5′ cap and extensive splicing before translation begins.
C
Introns are removed from eukaryotic pre-mRNA by DNA polymerase during transcription.
D
Eukaryotic mRNAs typically receive a poly(A) tail at the 5′ end to protect against exonucleases.
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