Specialized transduction
A. involves the random transmission of any gene.
B. involves the transfer of a few specific genes.
C. utilizes a defective virus.
D. only involves genes near the viral DNA integration site.
E. involves the transfer of a few specific genes, utilizes a defective virus AND only involves genes near the viral DNA integration site.
If the infecting phage lacks some critical pieces of DNA necessary for replication, it is called
A. incomplete.
B. mutated.
C. defective.
D. vegetative.
DNA is protected from restriction enzymes by being
A. sequestered in a lysosome.
B. turned into RNA.
C. methylated.
D.
made into double-stranded RNA.
Transducing virulent phages do not lyse the cells they invade because
A. transformation is taking place in the phage and this is transferred to the bacterium.
B. bacterial DNA has replaced critical viral DNA in the phage.
C. their virulence is dependent on the bacteria and virus replicating together.
D. the lytic genes are unable to enter during penetration and are shed outside the host.
A limiting factor for viral infection is
A. internal metabolic temperature of the host cell.
B. nutrition of the host cell.
C. stage of cell cycle of the host cell.
D. presence of specific receptor molecules on the host cell.
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