QuestionSBA
QuestionChoice
Picornavirus RNAs have IRES sequences in their RNAs which form 3-dimensional structures and bypass the need for 5' 7mG caps.
10001141
a
Internal ribosome entry sites (IRES)
QuestionChoice
Stealing 5' 7mG caps from host mRNAs is a viral DNA changing method employed by influenza's RNA-dependent RNA polymerases, but not by picornaviruses.
10001142
b
5' cap stealing
QuestionChoice
Intron removal by pre-mRNA splicing is not done in viruses as they contain no introns in their genomic material.

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10001145
e
Intron removal by pre-mRNA splicing
QuestionChoice
Cleaving 5' 7mG caps from host mRNAs is a change mediated by picornaviruses, but is not a change to picornavirus mRNAs.
10001143
c
5' cap cleavage
QuestionChoice
Highly active promoters are used by most viruses, including the 5' promoter element of picornavirus RNA genomes, but this is a constitutional state of viral genomic RNA rather than a change to mRNAs.
10001144
d
Use of highly active promoters
Concept
Chapter
2693
3889
Translation
Topic
181
Structure and Function of Cells
12775
Picornaviruses use which method in their mRNAs to get hosts to express their proteins?
a