Temperate phages have virion state, integrated state and replication state.

Which of the following elements is called “jumping genes”? A: transposons B: Plasmid, C: virulent phages D: prophage

Which of the following components can be recognized by phages as receptors for Escherichia coli? (). A: Lipopolysaccharide B: Peptidoglycan C: Flagellum D: Pili

Which<br/>of the following components can be recognized by phages as receptors<br/>for Escherichia coli?()(、C、D)。 A: lipopolysaccharide B: peptidoglycan C: flagella D: fimbriae

The life cycle of virulent phages that always kill their host cell and never become inactive prophages would be the _____ cycle. A: lethal B: lytic C: temperate D: strict E: lysogenic