Campbell Biology Chapter 16-17
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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.