CMB1003 12-13 Exam With Complete Solutions 2024-2025
What is a virus? - Answer acellular infectious agents
What is meant by obligate intracellular parasite? - Answer can only grow (replicate)
inside an appropriate host cell.
Are viral genomes DNA or RNA? - Answer can be both
Are viral genomes single or double stranded? - Answer either
Are viral genomes linear or circular? - Answer can be either
What is the viral capsid composed of? - Answer multiple copies of capsomeres
Nucleocapsid is A Central nucleic acid surrounded by the capsid protein
What is significant about the surface proteins present on a virus? Answer The binding to
target cells
Can viruses replicate themselves? Answer No, it needs a host cell
Why do the viruses not replicate themselves? Answer Because it lacks ribosomes which
carry out protein synthesis
A virion is - Complete, purified single virus particle
, Is it possible to view viruses using a light microscope? Answer no
Is it possible to view viruses using an electron microscope? Answer Yes
Where are the envelopes of viruses derived from? Answer host cells
How many basic structural forms of viruses are there? Answer 5
What are the 5 basic structural forms of viruses? Answer - Naked icosahedral
- Naked helical
- Enveloped icosahedral
- Enveloped helical
- Complex
What does naked icosahedral virus' look like? - Answer
What do helical viruses look like? - Answer
What do enveloped icosahedral virus' look like? - Answer
What do enveloped helical virus' look like? - Answer
When bacteria are resistant to antibiotics what could be used to kill them instead? -
Answer Bacteriophages
Oncolytic viruses can be used to treat? - Answer cancer
What is a virus? - Answer acellular infectious agents
What is meant by obligate intracellular parasite? - Answer can only grow (replicate)
inside an appropriate host cell.
Are viral genomes DNA or RNA? - Answer can be both
Are viral genomes single or double stranded? - Answer either
Are viral genomes linear or circular? - Answer can be either
What is the viral capsid composed of? - Answer multiple copies of capsomeres
Nucleocapsid is A Central nucleic acid surrounded by the capsid protein
What is significant about the surface proteins present on a virus? Answer The binding to
target cells
Can viruses replicate themselves? Answer No, it needs a host cell
Why do the viruses not replicate themselves? Answer Because it lacks ribosomes which
carry out protein synthesis
A virion is - Complete, purified single virus particle
, Is it possible to view viruses using a light microscope? Answer no
Is it possible to view viruses using an electron microscope? Answer Yes
Where are the envelopes of viruses derived from? Answer host cells
How many basic structural forms of viruses are there? Answer 5
What are the 5 basic structural forms of viruses? Answer - Naked icosahedral
- Naked helical
- Enveloped icosahedral
- Enveloped helical
- Complex
What does naked icosahedral virus' look like? - Answer
What do helical viruses look like? - Answer
What do enveloped icosahedral virus' look like? - Answer
What do enveloped helical virus' look like? - Answer
When bacteria are resistant to antibiotics what could be used to kill them instead? -
Answer Bacteriophages
Oncolytic viruses can be used to treat? - Answer cancer
