What part of the attached bacteriophage enters through the host cell wall? A) The entire virus. B) Only the enzymes necessary for replication. C) The nucleic acid. D) The nucleic acid and capsid. E) The capsid only. Question 11 During attachment of phage to E. coli, the phage A) actively seeks out the bacteria AND attaches to proteins or carbohydrates on the bacterial surface. B) randomly bumps into the bacteria AND attaches to proteins or carbohydrates on the bacterial surface. C) randomly bumps into the bacteria AND attaches to the bacterial RNA. D) randomly bumps into the bacteria AND attaches to the bacterial DNA. E) actively seeks out the bacteria AND attaches to the bacterial DNA. O B O D Question 12 Filamentous phages A) only infect E. coli that have pili. B) only infect E. coli lacking pili. C) infect E. coli regardless of the presence of pili. D) do not infect E. coli. E) only infect Gram-negative E. coli. C Question 13 In the replication of phage containing positive-sense DNA, A) the host's enzymes are used to make dsDNA. B) the host's DNA polymerase uses the phage RNA as a template to make negative-sense DNA. C) a phage-encoded DNA polymerase is used to make negative-sense RNA using the phage positive-sense RNA as a template. D) a phage-encoded DNA polymerase is used to make DNA using the phage positive-sense RNA as a template. E) a phage-encoded RNA polymerase is used to make DNA using the phage positive-sense RNA as a template. O B Question 14 The terms helical, icosahedral, and complex refer to A) viral life cycles. B) forms of nucleic acid. C) types of viral envelopes. D) shapes of viruses. E) types of bacteriophages. O B Question 15 The cellular organelle responsible for the digestion of ingested infectious agents is the A) endoplasmic reticulum. B) phagolysosome. C) Golgi apparatus. D) lysosome. E) peroxisome. O A O B