For which of the following no preventive vaccine is available?

A. Hav
B. Hbv
C. Hcv
D. Hev

A virion is______________?

A. Virus
B. Viral protein
C. Viral lysozyme
D. Viral gene

Which of the statement about viruses is incorrect___________________?

A. We can not grow them in laboratories on artificial medias
B. They are obligate intracellular parasite.
C. They can synthesize their nucleic acid
D. They are resistant to most of antibiotic treatment

Protein subunits of capsid is called the capsomeres is a characteristic of each virus. Their number in Herpes virus is__________?

A. 100
B. 152
C. 162
D. 172

The name Bacteriophage was coined by____________?

A. Charles chamberland
B. Ivanowski
C. Twort
D. D herelle

Vaccine Was discovered by______________?

A. Louis pasteur
B. Edward jennar
C. Ivanowski
D. Stanely

Kangaroo rat most probably would be found in___________?

A. Tropical rain forest
B. Tundra
C. Grass land
D. Desert

Viruses are __________ smaller than bacteria?

A. 10 – 100 times
B. 10 – 1000 times
C. 100 – 1000 times
D. 1000 – 10000 times

What percentage of light reaching the earth is used in photosynthesis?

A. 25%
B. 10%
C. 5%
D. 1%

The size of smallest virus is______________?

A. 10 nm
B. 20 nm
C. 30 nm
D. 40 nm