The 3′ End of Eukaryotic Pre-MRNAs Is Changed By

question 4

Multiple Choice

The 3′ end of eukaryotic pre-mRNAs is changed by:

• A) removing the last phosphate group
• B) adding a "cap"
• C) copying the last few bases so that it can form a duplex structure
• D) adding 100−250 adenine nucleotides
• E) phosphorylation of the mRNA molecule

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