Variety of Life MCQs Test Online 1

Instructions for Chapter Variety Of Life (The Virus) Online Test Mdcat-2023:

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Test Details:

Subject: Biology
Class: 1st year or 11
Chapter name: Variety Of Life (The Virus)
Test: MDCAT 2023
Book: NMDCAT
Total No. Of MCQS: 50
Time Allowed: 50 Minutes
Price : Free

Note : This test contains questions out of Sindh Text Board book.

311

Created on July 17, 2023 By

medicoengineer.com

Mdcat Biology XI Virus Mcqs test 1

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NameEmailPhone Number

1 / 50

1. The vector of CLCuD is?

a) Fruitfly

b) Housefly

c) Whitefly

d) Butterfly

2 / 50

2. Which one of the following is ssRNA?

a) Diarrhoea virus

b) Rubella virus

c) Mild rash virus

d) Small pox virus

3 / 50

3. HIV causes AIDS; It is characterized by the ?

a) Decrease in the number of cytotoxic T cells

b) Decrease in the number of helper T cells

c) Increase in the number of helper T cells

d) Increase in the number of memory T cells

4 / 50

4. Previously, virus was associated with infectious diseases which have?

a) Unknown cause

b) Known cause

c) Both A and B

d) None of these

5 / 50

5. The simplest viruses consist of a single molecule of a nucleic acid surrounded

a) Capsomere

b) Viral envelope

c) Capsid

d) Capsule

6 / 50

6. Which type of hepatitis virus can propagate only in the presence of the hepatitis HBV

a) Hepatitis A virus

b) Hepatitis D virus

c) Hepatitis C virus

d) Hepatitis E virus

7 / 50

7. Which of the following viruses contain enzyme reverse transcriptase?

a) Hepatitis B

b) Retroviruses

c) Covid-19

d) Both A and B

8 / 50

8. The spikes of HIV are?

a) Proteins in nature

b) Lipid in nature

c) Carbohydrate in nature

d) Nucleic acid in nature

9 / 50

9. The outer covering of HIV is a?

a) Glycoprotein envelope

b) Lipoprotein envelope

c) Nucleoprotein envelope

d) Polysaccharide envelope

10 / 50

10. Polyhedral capsid is found in:

a) TMV

b) Bacteriophage

c) Adenoviruses

d) Influenza virus.

11 / 50

11. What is true about HIV?

a) It is single-stranded virus.

b) It is unenveloped virus.

c) It is reovirus.

d) None of these is correct

12 / 50

12. Which one of the following is spherical in nature?

a) Bacteriophage

b) TMV

c) Poliovirus

d) None of these

13 / 50

13. The only human disease know to be cause by viroid is?

a) Hepatitis A

b) Hepatitis B

c) Hepatitis C

d) Hepatitis D

14 / 50

14. Viruses are?

a) Free-living

b) Obligate anaerobes

c) Obligate intracellular parasites

d) Facultative parasites

15 / 50

15. All of the following are the most common symptoms of AIDS concerned with

a) Swollen lymph glands in armpits

b) Persistent diarrhoea

c) chills

d) Night sweats

16 / 50

16. Adhesive properties of viruses are determined by?

a) Lipoproteins that make up their coats and envelope

b) Proteins that make up their coats and envelope

c) Polysaccharides that make up their coats and envelope

d) Nucleoproteins that make up their capsids

17 / 50

17. Polio virus is transmitted through which route?

a) Blood

b) Faecal-oral route

c) Semen

d) A, B and C

18 / 50

18. In HIV virus, the gp41 is required for ?

a) Cell fusion process

b) Conversion of RNA into DNA

c) Attachment to the host cell

d) A and C

19 / 50

19. The cause of death in AIDS is ?

a) Dementia

b) Kaposi's sarcoma

c) Diarrhoea

d) Pneumonia

20 / 50

20. The HIV virion enters the cell by the process of?

a) Integration

b) Attachment

c) Budding

d) Endocytosis

21 / 50

21. Which one of the following is not caused by viruses?

a) TB

b) Bird flu

c) Dengue fever

d) Influenza

22 / 50

22. In the life cycle of HIV, provirus uses a host enzyme called ___________ to create shorter strands messenger RNA (mRNA) ?

a) RNA polymerase

b) DNA polymerase

c) Reverse transcriptase

d) Integrase

23 / 50

23. What is the size of viruses?

a) 10 nm -- 20 nm

b) 10 nm -- 25 nm

c) 20 nm -- 25 nm

d) 20 nm -- 250 nm

24 / 50

24. : Which of the following types of hepatitis was known as serum hepatitis?

a) Hepatitis-A

b) Hepatitis-B

c) Hepatitis-C

d) Hepatitis-D

25 / 50

25. Which one of the following converts the single-stranded HIV RNA to double-

a) Host enzyme called reverse transcriptase

b) An HIV enzyme called reverse transcriptase

c) An HIV enzyme called integrase

d) An HIV enzyme called RNA polymerase

26 / 50

26. HIV was identified in ___________ and named in ___________. ?

a) 1984; 1984

b) 1986; 1986

c) 1984; 1986

d) 1986; 1988

27 / 50

27. Polio virus is categorized as?

a) Retrovirus

b) Delta virus

c) Enterovirus

d) Corona virus

28 / 50

28. The icosahedralral symmetry of viruses have?

a) Capsomeres arrange in 10 triangles

b) Capsomeres arrange in 16 triangles

c) Capsomeres arrange in 20 triangles

d) Capsomeres arrange in 24 triangles

29 / 50

29. Which one of the following is related in the management of HIV/AIDS?

a) IVF

b) Antibiotic resistance

c) ART

d) A and C

30 / 50

30. In HIV virus, the gp120 is needed for?

a) Cell fusion process

b) Conversion of RNA into DNA

c) Attachment to the host cell

d) A and C.

31 / 50

31. HIV glycoproteins are necessary for the virus to?

a) Bind CD4 and co- receptors

b) Bind CD8 and co- receptors

c) Bind to skin cells

d) All of these

32 / 50

32. A combination of Alpha interferon and ribavirin is helpful for the treatment of ?

a) Hepatitis A

b) Hepatitis B

c) Hepatitis C

d) A, B and C

33 / 50

33. Sores typically found on/around genital organs appear due to infection of ?

a) HIV

b) HBV

c) Herpes simplex virus type-1

d) Herpes simplex virus type-2

34 / 50

34. Which enzyme hides the HIV DNA within the host cell's own DNA?

a) RNA polymerase

b) DNA polymerase

c) Reverse transcriptase

d) Integrase

35 / 50

35. Cancer in animals is caused by?

a) Poxvirus

b) Rous sarcoma virus

c) Picornavirus

d) Papovirus

36 / 50

36. The new virus (HIV) steals part of the cell's outer envelope during which process?

a) During attachment

b) During budding

c) During integration

d) During infection.

37 / 50

37. HSV-Type-1 is transmitted primarily through ?

a) Blood

b) Saliva

c) Reproductive (genital) fluids

d) All of these

38 / 50

38. A complete viral particle is known as ?

a) Prophage

b) Viroid

c) Bacterium

d) Virion

39 / 50

39. Kaposi's sarcoma is a type of?

a) Liver cancer

b) Blood cancer

c) Skin cancer

d) Lung cancer

40 / 50

40. The structural proteins of HIV are encoded by ?

a) Six out of the nine virus genes

b) Three out of the nine virus genes

c) Two out of the three virus genes

d) One out of the six virus genes.

41 / 50

41. Which one of the following cuts the long chains of HIV proteins into smaller individual proteins?

a) A host enzyme called protease

b) An HIV enzyme called integrase

c) An HIV enzyme called protease

d) An HIV enzyme called reverse transcriptase

42 / 50

42. What is true about HIV genetic material?

a) Two double strands of HIV RNA

b) Two single strands of HIV RNA

c) Two single strands of HIV DNA

d) Two double strands of HIV DNA

43 / 50

43. Viruses may have?

a) Helical shape

b) Polyhedral shape

c) Complex shape

d) All of these

44 / 50

44. A virus that replicates in host by producing DNA from RNA is known as ?

a) Reovirus

b) Parvovirus

c) Retrovirus

d) Rhinovirus

45 / 50

45. Hepatitis is generally characterized as ?

a) Inflammation of stomach

b) Inflammation of liver

c) Inflammation of small intestine

d) All of these

46 / 50

46. Which one of the following is ssRNA?

a) Diarrhea virus

b) Rubella virus

c) Mild rash virus

d) Small pox virus

47 / 50

47. The coat is the outer covering of viral particle that consists of ?

a) Envelope

b) Capsid

c) Nucleic acid

d) A and B

48 / 50

48. Diarrhoea virus is: ?

a) dsRNA virus

b) ssRNA virus

c) dsDNA virus

d) ssDNA virus.

49 / 50

49. Chamberland found that the causative agents of rabies:

a) Could not pass through the porcelain filter

b) Could pass through the filter paper

c) Could pass through the porcelain filter

d) None of these.

50 / 50

50. The internationally agreed system of virus classification is based on:

I) Composition in the virus particle
II) Structure

III) Tail fibres

a) II only

b) III only

c) I and II

d) I, II and III.

Your score is

The average score is 45%

Instructions for Chapter Variety Of Life (The Virus) Online Test Mdcat-2023:

Test Details:

Note : This test contains questions out of Sindh Text Board book.

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