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COURSE CODE: BIO 415
COURSE TITLE: VIROLOGY AND TISSUE CULTURE
TIME ALLOWED: 2 HOURS
INSTRUCTION: ANSWER QUESTION ONE (1) AND ANY OTHER THREE (3) QUESTIONS
1. (a) Define the term virology (3 marks)
(b) Describe the chemical composition of viruses (12 marks)
(c) The future prospects in vaccination is bright through the combination of molecular biology and modern technologies. Discuss (10 marks).
2. (a) Enumerate any 6 characteristics of viruses (6 marks)
(b) Describe the various modes of infection transmission by viruses (9 marks)
3. (a) What do you understand by the term viral replication? (3 marks)
(b) Write short notes on the following stages of viral replication:
i. Morphogenesis (3 marks)
ii. Transcription (3 marks)
iii. Maturity and release (3 marks)
4. (a) In a tabular form, list 10 medically important viruses indicating their characteristic symmetry and shapes (10 marks)
(b) In a tabular form, list 10 medically important viruses and infection caused by each of them (5marks)
5. (a) Outline the conditions that are necessary for a good diagnosis of virus infections.(8 marks)
(b) Distinguish between DNA and RNA viral genomes (4 marks)
(c) An RNA virus contains the following sequence: T A G G G C T T A. What will be the
sequence on the complementary strand in its cDNA? (3 marks)
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You can now use you matric number to login as your username and password in a lowercase.
https://elearn.nouedu2.net/login/
Note that you are to change your passw...
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