37) Which of the following is necessary for replication of a prion? A) DNA B) RNA C) DNA polymerase D) Prisc E) lysozyme 38) A persistent infection is one in which A) host cells are gradually lysed. B) host cells are transformed. C) the virus remains in equilibrium with the host without causing a disease. D) the disease process occurs gradually over a long period. E) viral replication is unusually slow. 39) An example of a persistent viral infection is A) Human Immunodeficiency Virus infection. B) Varicellavirus infection. C) Hepatitis A infection. D) Influenza. E) Herpes Simplex Virus infection. 40) Which of the following would be the first step in biosynthesis of a virus with a - (minus) strand of RNA? A) synthesis of DNA from an RNA template B) transcription of mRNA from DNA C) synthesis of DNA from a DNA template D) synthesis of double-stranded RNA from a DNA template E) synthesis of double-stranded RNA from an RNA template 41) An infectious protein is a A) prion. B) bacteriophage. C) viroid. D) papovavirus. E) retrovirus. 42) An envelope is acquired during which of the following steps? A) uncoating B) penetration C) release D) adsorption E) biosynthesis 43) An example of a latent viral infection is A) influenza. B) subacute sclerosing panencephalitis. C) smallpox. D) mumps. E) cold sores. 44) A virus's ability to infect an animal cell depends primarily upon the 37) 38) 39) 40) 41) 42) 44)