MCQs MICROBIOLOGY: Hepatitis virus

1.
Which of the following hepatitis viruses is not RNA virus?

A. Hepatitis A virus
B. Hepatitis B virus
C. Hepatitis E virus
D. Hepatitis G virus
Answer & Explanation
Answer: Option B

2.
Which of the following nucleic acid is present in hepatitis B virus?

A. dsDNA B. ssRNA
C. ssDNA D. dsRNA
Answer & Explanation
Answer: Option A

3.
The agent representing an isolate of hepatitis G virus is

A. GBA-A
B. GBV-B
C. GBV-C
D. none of these
Answer & Explanation
Answer: Option C

4.
Hepatitis G virus belongs to the family

A. Caliciviridae B. Flaviviridae
C. Hepadnaviridae D. Coronaviridae
Answer & Explanation
Answer: Option B

5.
Transmission of hepatitis G virus is

A. Parenterally
B. Sexually
C. Both (a) and (b)
D. None of these
Answer & Explanation
Answer: Option C

6.
The most serious infection is

A. superinfection of an HBsAg carrier by HDV
B. infection with HBV alone
C. coinfection of HBVand HDV
D. none of the above
Answer & Explanation
Answer: Option A

7.
Which of the following specimens contain/s hepatitis B virus in an infected person?

A. Blood
B. Semen
C. Saliva
D. All of these
Answer & Explanation
Answer: Option D

8.
Vertical transmission may be seen in

A. Hepatitis B virus
B. Hepatitis C virus
C. Hepatitis D virus
D. All of these
Answer & Explanation
Answer: Option D

9.
Which of the following viral infections can result in chronic carrier state?

A. HBV
B. HCV
C. HDV
D. All of these
Answer & Explanation
Answer: Option D

10.
Most reliable test for detection of hepatitis E infection is

A. ELISA test for IgM anti-HEV
B. Western blot assay for IgM anti-HEV
C. Polymerase chain reaction for detection of HEV RNA
D. ELISA test for IgG anti-HEV
Answer & Explanation
Answer: Option C

11.
Hepatocellular carcinoma (Hepatoma) may be caused by

A. Hepatitis A virus
B. Hepatitis C virus
C. Both (a) and (b)
D. None of these
Answer & Explanation
Answer: Option C

12.
The defective satellite virus is

A. hepatitis B
B. hepatitis C
C. hepatitis D
D. hepatitis A
Answer & Explanation
Answer: Option C

13.
All of the following viruses are enveloped except

A. Hepatitis A virus
B. Hepatitis B virus
C. Hepatitis C virus
D. Hepatitis D virus
Answer & Explanation
Answer: Option A

14.
The diagnosis of hepatitis A virus infection is carried out from the method based on

A. aminotransferase levels
B. detection of faecal HAV by immunoelectron microscopy
C. both (a) and (b)
D. detection of IgM anti-HAV by ELISA
Answer & Explanation
Answer: Option D

15.
Which of the following is not correct for hepatitis A virus?

A. It can be grown in cell cultures of primate and human cells
B. It is one of the most stable viruses infecting humans
C. It may cause hepatocellular carcinoma
D. None of the above
Answer & Explanation
Answer: Option C

16.
Which of the following viruses can be transmitted by the parenteral route?

A. HBV
B. HCV
C. HDV
D. All of these
Answer & Explanation
Answer: Option D

17.
The viruses, which is/are transmitted by parenteral and sexual routes is/are

A. Hepatitis B virus
B. Hepatitis C virus
C. Hepatitis G virus
D. All of these
Answer & Explanation
Answer: Option D

18.
Which of the following antigenic types of hepatitis B virus is present in the envelope?

A. HbsAg B. HBcAg
C. HBeAg D. HBxAg
Answer & Explanation
Answer: Option A

19.
The development of hepatocellular carcinoma is associated with

A. ground squirrel hepatitis virus
B. hepatitis B virus
C. woodchuck hepatitis virus
D. all of the above
Answer & Explanation
Answer: Option D

20.
Which of the following antigenic types of hepatitis B virus is prevalent in India?

A. Adw B. Adr
C. Ayw D. Ayr
Answer & Explanation
Answer: Option C