MICR 4160 Exam 1 Questions and
Answers
Which of the following can never be found in any virus as per current knowledge? - Answer-Ribosomes
Which of the following statements is FALSE in the context of our current knowledge of viruses - Answer-
All viruses are ultra-microscopic and can be visualized only by electron microscopes
Which of the following animal viruses is proven to be a beneficial virus in the mouse? - Answer-Murine
Noro Virus (MNV)
Which of the following viruses infect bacteria? - Answer-Bacteriophage
Which of the following scientists established vaccination? - Answer-Edward Jenner
Which of the following defines a "vision"? - Answer-An infectious virus particle
Which of the following is true concerning bacterial vs. viral replication - Answer-Viruses must assemble
using pre-formed components
, Virus classification usually does not use species level instead a viral genus is described with which of the
following alternatives? - Answer-Isolates, Host range, Serotypes, and Nucleotide sequences
T/F Our genome contains many retroviral sequences - Answer-True
Mimivirus and Pandoravirus completely changed our previous perception of viruses. Which of the
following is true about this change in perception? - Answer-They are giant viruses and the only type of
viruses that can be visualized by light microscopes
A cabbage looper is infected with what kind of viruses? - Answer-Baculovirus (insect virus)
Which is a key concept first discovered about viruses that distinguished them from other
microorganisms? - Answer-They were small enough to pass through a 0.2 micron filter
Which of the following attribute in virus classification? - Answer-Symmetry of the capsid, dimension of
the virion and capsid, presence of a lipid membrane, nature and sequence of nucleic acid
Which of the following was the first virus discovered? - Answer-Tobacco Mosaic Virus
Which of the following statements is true about the Curvaularia Thermal Tolerance Virus? - Answer-
CThTV infects Curvularia protruberata fungus and when the infected fungus colonizes in the
Dicanthelium langiosum grass species; it offers thermal tolerance of the grass in a three-way symbiosis
Which of the following is the best definition of a virus? - Answer-Viruses are often ultra-microscopic
obligate intra-cellular parasites; which absolutely need a living cell or cell extract of a host to replicate
Human feces have an abundance of what kind of viruses? - Answer-Plant viruses
Answers
Which of the following can never be found in any virus as per current knowledge? - Answer-Ribosomes
Which of the following statements is FALSE in the context of our current knowledge of viruses - Answer-
All viruses are ultra-microscopic and can be visualized only by electron microscopes
Which of the following animal viruses is proven to be a beneficial virus in the mouse? - Answer-Murine
Noro Virus (MNV)
Which of the following viruses infect bacteria? - Answer-Bacteriophage
Which of the following scientists established vaccination? - Answer-Edward Jenner
Which of the following defines a "vision"? - Answer-An infectious virus particle
Which of the following is true concerning bacterial vs. viral replication - Answer-Viruses must assemble
using pre-formed components
, Virus classification usually does not use species level instead a viral genus is described with which of the
following alternatives? - Answer-Isolates, Host range, Serotypes, and Nucleotide sequences
T/F Our genome contains many retroviral sequences - Answer-True
Mimivirus and Pandoravirus completely changed our previous perception of viruses. Which of the
following is true about this change in perception? - Answer-They are giant viruses and the only type of
viruses that can be visualized by light microscopes
A cabbage looper is infected with what kind of viruses? - Answer-Baculovirus (insect virus)
Which is a key concept first discovered about viruses that distinguished them from other
microorganisms? - Answer-They were small enough to pass through a 0.2 micron filter
Which of the following attribute in virus classification? - Answer-Symmetry of the capsid, dimension of
the virion and capsid, presence of a lipid membrane, nature and sequence of nucleic acid
Which of the following was the first virus discovered? - Answer-Tobacco Mosaic Virus
Which of the following statements is true about the Curvaularia Thermal Tolerance Virus? - Answer-
CThTV infects Curvularia protruberata fungus and when the infected fungus colonizes in the
Dicanthelium langiosum grass species; it offers thermal tolerance of the grass in a three-way symbiosis
Which of the following is the best definition of a virus? - Answer-Viruses are often ultra-microscopic
obligate intra-cellular parasites; which absolutely need a living cell or cell extract of a host to replicate
Human feces have an abundance of what kind of viruses? - Answer-Plant viruses
