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Campbell Biology Chapter 16-17

Question:
Which of the following is a function of a poly-A signal sequence?



A. It codes for a sequence in eukaryotic transcripts that signals enzymatic cleavage ~1035 nucleotides away.

B. It allows the 3' end of the mRNA to attach to the ribosome.
C. It is a sequence that codes for the hydrolysis of the RNA polymerase.
D. It adds the poly-A tail to the 3' end of the mRNA.
E. It adds a 7-methylguanosine cap to the 3' end of the mRNA.
Answer:
A. It codes for a sequence in eukaryotic transcripts that signals enzymatic cleavage ~1035 nucleotides away.
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Last update by mayur on 03/27/2014
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Campbell Biology Chapter 16 17
Campbell Biology Chapter 16-17
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Free Flashcard From Campbell Biology Chapter 16-17
Question: Which of the following is a function of a poly-A signal sequence? A. It codes for a sequence in eukaryotic transcripts that signals enzymatic cleavage ~1035 nucleotides away. B. It allows the 3' end of the mRNA to attach to the ribosome. C. It is a sequence that codes for the hydrolysis of the RNA polymerase. D. It adds the poly-A tail to the 3' end of the mRNA. E. It adds a 7-methylguanosine cap to the 3' end of the mRNA.
Answer: A. It codes for a sequence in eukaryotic transcripts that signals enzymatic cleavage ~1035 nucleotides away.