BiologyMDCAT

Biology Diversity (acellular life/ variety of life) MCQs

157

Biology Diversity (acellular life/ variety of life) MDCAT Test Preparation MCQs

1. Which of these are found in all viruses?
a.
b.
c.
d.

Question 1 of 56

2. How does a virus cause disease?
a.
b.
c.
d.

Question 2 of 56

3. All viruses can reproduce within living organisms only, so they are known as:
a.
b.
c.
d.

Question 3 of 56

4. A Virus is a.
a.
b.
c.
d.

Question 4 of 56

5. Number of capsomers present in herpes virus are
a.
b.
c.
d.

Question 5 of 56

6. The complete mature and Infectious particle is known as
a.
b.
c.
d.

Question 6 of 56

7. When a bacteriophage in its lytic phase carries some of the bacterium's partially digested chromosome with it to another host cell the process is called:
a.
b.
c.
d.

Question 7 of 56

8. HIV is classified as:
a.
b.
c.
d.

Question 8 of 56

9. Helicalerontractile sheath occurs in
a.
b.
c.
d.

Question 9 of 56

10. In a newly discovered virus you might fin
a.
b.
c.
d.

Question 10 of 56

11. What is the sequence of steps in which a bacteriophage attacks bacteria and injects its
DNA?
a.
b.
c.
d.

Question 11 of 56

12. Viroids differ from viruses in having.
a.
b.
c.
d.

Question 12 of 56

13. Viruses are
a.
b.
c.
d.

Question 13 of 56

14. Give below is the diagram of a bacteriophage. In which one of the options all the four part A,B,C and are correct.
a.
b.
c.
d.

Question 14 of 56

15. Poliomyelitis affects
a.
b.
c.
d.

Question 15 of 56

16. How are HIV and AIDS different?
a.
b.
c.
d.

Question 16 of 56

17. Reverse transcription is used to make DNA copies of:
a.
b.
c.
d.

Question 17 of 56

18. Which one is true for Pox-viruses?
a.
b.
c.
d.

Question 18 of 56

19. Which step in the lytic cycle follows cell? attachment of virus and release of DNA into the
a.
b.
c.
d.

Question 19 of 56

20. Bacteriophage consists of or made up of.
a.
b.
c.
d.

Question 20 of 56

21. AIDS is due to.
a.
b.
c.
d.

Question 21 of 56

22. Which of the following illness is caused by a retrovirus?
a.
b.
c.
d.

Question 22 of 56

23. Induction is a process in which a viral DNA
a.
b.
c.
d.

Question 23 of 56

24. Which one of the following diseases caused by enveloped RNA virus and spread in epidemic form?
a.
b.
c.
d.

Question 24 of 56

25. which of the at any in the ot true for retroviruses
a.
b.
c.
d.

Question 25 of 56

26. RNA retroviruses have a special enzyme that
a.
b.
c.
d.

Question 26 of 56

27. The process which cannot take place in the absence of virus is
a.
b.
c.
d.

Question 27 of 56

28. Mumps and measles viruses belong to group paramyxoviruses which are the viruses:
a.
b.
c.
d.

Question 28 of 56

29. The latest view for the origin of viruses is.
a.
b.
c.
d.

Question 29 of 56

30. Viruses are considered nonliving because
a.
b.
c.
d.

Question 30 of 56

31. Certain RNA viruses carry a gene for synthesis of DNA. This enzyme is: an enzyme that uses viral RNA as a template in the
a.
b.
c.
d.

Question 31 of 56

32. HIV attaches to
a.
b.
c.
d.

Question 32 of 56

33. The bacteriophage contains an enzyme known as.
a.
b.
c.
d.

Question 33 of 56

34. The best known phages are T phages that Infect:
a.
b.
c.
d.

Question 34 of 56

35. Viral disease that is wide spread and caused by enveloped RNA virus is
a.
b.
c.
d.

Question 35 of 56

36. Common cold is caused by
a.
b.
c.
d.

Question 36 of 56

37. Bacteriophage releases lysozyme during.
a.
b.
c.
d.

Question 37 of 56

38. Which one of the following cells are mainly infected by HIV?
a.
b.
c.
d.

Question 38 of 56

39. Which part of an animal virus is not reproduced in multiple copies?
a.
b.
c.
d.

Question 39 of 56

40. Enveloped virus enters into host cells by.
a.
b.
c.
d.

Question 40 of 56

41. Which statement is not true about fungi
a.
b.
c.
d.

Question 41 of 56

42. Why can't a person with AIDS make antibodies against HIV?
a.
b.
c.
d.

Question 42 of 56

43. The HIV primarily infects
a.
b.
c.
d.

Question 43 of 56

44. In HIV viruses, reverse transcriptase converts single-stranded RNA into double stranded viral DNA. This process is called:
a.
b.
c.
d.

Question 44 of 56

45. Hepatitis D is caused by
a.
b.
c.
d.

Question 45 of 56

46. All viruses are made up of
a.
b.
c.
d.

Question 46 of 56

47. Jenner used material for vaccination from cowpox lesions and successfully vaccinated_____persons:
a.
b.
c.
d.

Question 47 of 56

48. ________ was formerly called as infectious hepatitis:
a.
b.
c.
d.

Question 48 of 56

49. Which of the following characteristic of viruses is not like that of living things
a.
b.
c.
d.

Question 49 of 56

50. Prions are made up of
a.
b.
c.
d.

Question 50 of 56

51. Which of the following statements is correct
a.
b.
c.
d.

Question 51 of 56

52. The genetic material of retroviruses (AIDS virus) is.
a.
b.
c.
d.

Question 52 of 56

53. HIV is classified as a retrovirus because its genetic information is carried in.
a.
b.
c.
d.

Question 53 of 56

54. Animal viruses have.
a.
b.
c.
d.

Question 54 of 56

55. How is HIV transmitted from one person to another?
a.
b.
c.
d.

Question 55 of 56

56. Which of these is true statement?
a.
b.
c.
d.

Question 56 of 56


 

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