Biology 251 - Genetics » Spring 2021 » Topic 10.3 Quiz
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Question #1
In eukaryotes, mRNAs are transcribed by:
A.
a single RNA polymerase that transcribes all genes.
B.
RNA polymerase I.
C.
RNA polymerase II.
D.
RNA polymerase III.
Question #2
The mRNA cap has all of the following features except:
A.
guanine base.
B.
methylation on 2'-hydroxyl.
C.
5' to 5' linkage
D.
methylated base on purine carbon 7.
Question #3
Polyadenylation by PolyA polymerase is templated by a string of Us.
A.
True
B.
False
Question #4
In alternative splicing, different exons transcribed from a gene may be spliced together in different combinations to encode multiple protein products.
A.
True
B.
False
Question #5
RNA editing is performed by alignment of a substrate RNA to a __________ for modification of the transcript with substitutions, insertions or deletions.
A.
snRNA
B.
siRNA
C.
microRNA
D.
guide RNA
E.
snoRNA
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