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Tb) Are enveloped Tc) Have helical symmetry Fd) Have ds RNA genome 13. Flaviviruses Fa) Is a naked virus Tb) Has helical symmetry Tc) Has single-stranded genome Td) Has positive sense RNA genome 14. Entamoeba histolytica and Entamoeba dispar are best differentiated by: a) Stool microscopy Tb) Stool ELISA c) Stool culture d) None of the above 15. The morphology of most viruses can be best viewed by the use of a a) The phase-contrast microscope b) The transmission electron microscope c) The scanning electron microscope d) The Fluorescence microscope Section C 16. Viruses are unique, smallest heterogeneous infectious agents with sizes ranging from ......20-30nm..............................................in general. (1 mark) 17. Viruses are ...............intracellular obligate..............................................parasites; grow only in living cells. (1 mark) 18. Viruses which infect and replicate in bacteria are called ......bacteriophage................................ (1 mark) 19. The lipids part of the virus envelope are coded for by .......................capsid.............. (1 mark) 20. Continuous cell lines for virus cultivation have .................................sub-culturing potential (1 mark) SECTION D Virology 2. Write an essay on the replication of viruses. (Total marks=10)

          Tb) Are enveloped
Tc) Have helical symmetry
Fd) Have ds RNA genome

13. Flaviviruses
Fa) Is a naked virus
Tb) Has helical symmetry
Tc) Has single-stranded genome
Td) Has positive sense RNA genome

14. Entamoeba histolytica and Entamoeba dispar are best differentiated by:
a) Stool microscopy
Tb) Stool ELISA
c) Stool culture
d) None of the above

15. The morphology of most viruses can be best viewed by the use of a
a) The phase-contrast microscope
b) The transmission electron microscope
c) The scanning electron microscope
d) The Fluorescence microscope

Section C

16. Viruses are unique, smallest heterogeneous infectious agents with sizes ranging from
......20-30nm..............................................in general. (1 mark)

17. Viruses are ...............intracellular obligate..............................................parasites;
grow only in living cells. (1 mark)

18. Viruses which infect and replicate in bacteria are called
......bacteriophage................................ (1 mark)

19. The lipids part of the virus envelope are coded for by
.......................capsid.............. (1 mark)

20. Continuous cell lines for virus cultivation have .................................sub-culturing
potential
(1 mark)

SECTION D
Virology
2. Write an essay on the replication of viruses. (Total marks=10)

Tb) Are enveloped
Tc) Have helical symmetry
Fd) Have ds RNA genome

13. Flaviviruses
Fa) Is a naked virus
Tb) Has helical symmetry
Tc) Has single-stranded genome
Td) Has positive sense RNA genome

14. Entamoeba histolytica and Entamoeba dispar are best differentiated by:
a) Stool microscopy
Tb) Stool ELISA
c) Stool culture
d) None of the above

15. The morphology of most viruses can be best viewed by the use of a
a) The phase-contrast microscope
b) The transmission electron microscope
c) The scanning electron microscope
d) The Fluorescence microscope

Section C

16. Viruses are unique, smallest heterogeneous infectious agents with sizes ranging from
......20-30nm..............................................in general. (1 mark)

17. Viruses are ...............intracellular obligate..............................................parasites;
grow only in living cells. (1 mark)

18. Viruses which infect and replicate in bacteria are called
......bacteriophage................................ (1 mark)

19. The lipids part of the virus envelope are coded for by
.......................capsid.............. (1 mark)

20. Continuous cell lines for virus cultivation have .................................sub-culturing
potential
(1 mark)

SECTION D
Virology
2. Write an essay on the replication of viruses. (Total marks=10)

Added by Eric Y.

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