Microbiology 3

Replication of temperate phages and lytic phages have these steps in common

-Assembly -Attachment -Release -Biosynthesis of viral components -Genome entry

Late proteins of the T4 lytic cycle include __

-T4 tail fibers -T4 capsomere Components

burst size

Number of phage particles released from a host cell

lysogenic conversion

a change in the phenotype of a lysogen as a consequence of the specific prophage it carries

temperate phages are more likely to enter the lysogenic cycle when bacterial cells are __

growing slowly

The physical rupture of a cell is termed __

lysis

Repressor

protein essential for maintenance of the lysogenic state

lysis

rupture or bursting of a cell

infection of bacteria by __ phages always end with the lysis of the host cell

virulent

What occurs during the synthesis stage of the T4 lytic cycle?

-synthesis of phage proteins -degradation of bacterial DNA -Synthesis of phage DNA

extrusion

-when M13 particles are assembled -virus uses to exit the cell

__ phages cause productive infections that do not kill the host cell

Filamentous

How does bacteriophage nucleic acid enter the host cell?

Injection