M.Sc. (Microbiology) (Semester (CBCS) Examination, 2017
RECENT TRENDS IN VIROLOGY.
Day Date: Saturday, 22-04-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
N.B.:1) Part- Questions 1is compulsory.
Attempt any 4questions from Part II
Figures to the right indicate full marks.
PART I
Q.1 Rewrite the sentence by choosing correct alternative from the
following:
14
both RNA and DNA as its genome.
HIV Human cytomegalovirus
Raus sarcoma virus Reovirus
The only virus which has double stranded RNA
Bunyavirus Reovirus
Calcivirus Rhabidovirus
protective capsid around the nucleic acids.
Slow viruses Viroids
Prions Naked Viruses
Hubner and Todaro theory.
Provirus Proto virus
Oncogene Somatic mutation
Elution process is observed
Rubella Influenza
Mumps Picorna
Koplik's spots are found in____disease.
Polio Cancer
Measeles Influenza
Potato spindle tuber disease is caused
Virus Prions E
Viroids Exons
The capsid of picornaviruses is made up capsomers.
32 10
8 2
Page 1 of 2
Yolk sac is useful for cultivation of virus.
TMV Rabies Herpes simplex Plant
10) is most accurately describes a latent infection caused by a
virus.
The virus replicates in the host and the host cell is usually killed
by the release of the progeny viruses.
The virus genome has into the host cell, and possibly transformed
the cells into tumor cells.
The viral genome is inside the cell, but the genome is not
replicating or the virus is not doing harm to the cell.
The virus replicates in the host cell, and slowly releases virus
progeny with very few of the infected cells dying.
11) is suitable for cultivation of plant viruses.
Embryonated chicken Egg Tissue culture
Lab animals Tumor cells
12) In lambda gene is responsible for the host cell lysis.
Q A
R b2
13) Antiviral substance produced in human body is
Antibody Antigen Interferon immunogenic
14) is a temperate phage.
ƟX174 B)T4 T3 λ
PART II
Q.2 Take a detail account on structure, genomic organization, pathogenesis
and control of RNA Animal viruses with suitable example.
14
Q.3 Write an essay on multiplication of Bacteriophages. 14
Q.4 Write short answer on Any Two of the following: 14
Briefly explain Ontogenesis.
Briefly describe Neutralization of viruses by antibody and interferon.
What is ICTV ICNV? Describe in brief cataloging of viruses.
Q.5 Write short answers (any 14
Draw labeled diagram of the influenza virus and add a note on its
pathogenesis.
Briefly describe genomic replication of DNA and RNA animal viruses.
What are Prions? Explain how they are differ from viroids.
Q.6 Write short answers any two: 14
Insect viruses.
Genetic analysis of viruses by classical genetic method.
ELISA.