611. A virion is______________?
A. Virus
B. Viral protein
C. Viral lysozyme
D. Viral gene

612. For which of the following no preventive vaccine is available?
A. HAV
B. HBV
C. HCV
D. HEV

613. Which one of the following specially result in chronic liver disease leading to hepatic failure:
A. HAV
B. HBV
C. HCV
D. HEV

614. Protein coat the capsid of adenovirus is________________?
A. Surrounded by genome
B. Surrounding genome
C. Surrounding the envelope
D. Both B and C

615. Mode of transmission of hepatitis A is__________?
A. Serum
B. Faeco-oral
C. Sexual contact
D. All of these

616. Attachment of the bacteriophage with the receptor site on the bacterial cell wall involves_______________?
A. Strong covalent bond between virion and the receptor site.
B. Week chemical unior between them
C. Both A and B depending upon the phage
D. None of these

617. Which of the following statement about AIDS is incorrect:
A. is a host specific disease
B. An infected mother cannot pass the virus to her baby.
C. Results in enlargement of lymph nodes
D. Can be prevented.

618. Bacteriophage that infect E. coli are called_____________?
A. M type
B. N type
C. T type
D. S type

619. Complex symptoms like severe pneumonia vascular tumor sudden weight loss swollen lymph nodes and immune deficiency are features of:
A. Polio
B. Hepatitis
C. AIDS
D. HIV

620. An isolated virus is not considered living since it________________?
A. Separates in to two inner parts
B. Can not metabolize
C. Rapidly looses its Genome chemical inert
D. Is coated with an air tight shield

NOTE
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