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Replication of a Positive (+) Sense Strand of Lytic RNA Phage

View the animation below, then complete the quiz to test your knowledge of the concept.






1A positive (+) strand of RNA
A)can not function directly as mRNA
B)makes a minus (–) strand of RNA which can then act as mRNA
C)can directly act as mRNA
D)must be double stranded



2In the replication of the positive (+) sense strand of lytic RNA phage, in order to make more positive (+) strands
A)the (+) RNA strand must code for the synthesis of RNA polymerase (replicase)
B)the RNA replicase uses the (+) sense RNA as a template to make (–) strand RNA
C)the (–) sense strand RNA is used to make more (+) strands
D)all of the above



3The negative (–) sense strand of RNA
A)plays no role
B)makes RNA replicase
C)is used to synthesize more + strands
D)acts as mRNA to make viral proteins



4A positive sense strand lytic RNA phage attaches to the cell wall of an E. coli bacterium.
A)True
B)False



5A phage induced lysozyme lyses the host cell releasing the newly made phage.
A)True
B)False







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