XI Biology Acellular Life Or Virus Test Mdcat-2024

Biology Xi Acellular life or virus mdcat online test

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    Test Details:

      • Subject: Biology
      • Class: 1st year or 11
      • Chapter name: Acellular Life or Virus  
      • Test: MDCAT 2024
      • Book: Sindh Textbook
      • Total No. Of MCQS: 50
      • Time Allowed: 50 Minutes
      • Price : Free

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      XI Biology Acellular life or Virus Online Test Mdcat-2024

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      1 / 50

      1. What distinguishes viruses from living organisms?

      2 / 50

      2. What is the basis of David Baltimore's classification of viruses?

      3 / 50

      3. Which type of virus has deoxyribonucleic acid (DNA) as their genome?

      4 / 50

      4. Which of the following is an example of a double-stranded DNA virus?

      5 / 50

      5. Which virus is classified as a single-stranded RNA virus with a DNA intermediate?

      6 / 50

      6. What process do reverse transcribing viruses use to form DNA from RNA?

      7 / 50

      7. Which virus is an example of a Positive sense single-stranded RNA virus?

      8 / 50

      8. Match the Column:

      A) Parvovirusi) Infect bacteria
      B)  Bacteriophageii) infect plants
      C) Hepititis-Biii) Double-stranded DNA virus with  RNA Intermediate
      D) Phytopagesiv) Single-stranded DNA virus

      9 / 50

      9. Function of Reverse Transcriptase enzyme is:

      10 / 50

      10. Tick the incorrect statement :

      11 / 50

      11. Which of the following accurately describes the genome type and typical capsid shape of phytophages?

      12 / 50

      12. Which type of virus is characterized by having double-stranded DNA as its genome and a head and tail structure?

      13 / 50

      13. Considering the host specificity, which type of virus includes the examples TMW and CaMV, and what are their typical genomic and structural characteristics?

      14 / 50

      14. Tick the correct statement regarding the structure of viruses:

      15 / 50

      15. Match the following components of a virus with their correct description:





      a. Identical protein units specific to a virus type

      b. Outer covering made of protein

      c. Genetic material that may be DNA or RNA

      d. Lipoprotein layer which helps to recognize host cell

      16 / 50

      16. Which of the following statements correctly describes the structural arrangement of capsomeres?

      17 / 50

      17. Viruses can be classified on the basis of:

      18 / 50

      18. Function of Endonuclease is :

      19 / 50

      19. Complement System is:

      20 / 50

      20. Drugs and vaccines becomes less effective for Viruses because:

      21 / 50

      21. Tick the correct statement:

      I. Coronavirus and influenza are examples of  Enveloped Viruses

      II. Coronavirus and influenza are examples of non-enveloped viruses and

      III. Enveloped virus can survive at  higher levels of Humidity than non-enveloped

      IV. non-enveloped virus can survive at higher levels of Humidity than Enveloped

      22 / 50

      22. Label the Diagram:


      23 / 50

      23. In bacteriophage tail fibers usually are _____ in number.

      24 / 50

      24. What does the acronym AIDS stand for?

      25 / 50

      25. In bacteriophage Adsorption apparatus located _______and  functions as________.

      26 / 50

      26. Which of the following pairs correctly matches a virus to its capsid shape?

      27 / 50

      27. During the penetration stage of bacteriophage, what remains outside the bacterium and is referred to as the "ghost"?

      28 / 50

      28. In the maturation stage, what begins to form as a result of the assembly of synthesized components?

      29 / 50

      29. What enzyme is released by newly formed bacteriophages to cause lysis of the bacterial wall?

      30 / 50

      30. How many phage progeny are typically released into the surrounding environment after the lysis of a bacterial cell?

      31 / 50

      31. Which statement accurately describes the maturation stage of the bacteriophage lytic cycle?

      32 / 50

      32. What does the bacteriophage virus form when its genome joins with the host bacterial nucleic acid in the lysogenic cycle?

      33 / 50

      33. In the lysogenic cycle, what is the fate of the bacterial cell while the prophage is integrated into its genome?

      34 / 50

      34. Which of the following statements accurately describe the differences between the lytic and lysogenic cycles of bacteriophages?

      1. The lytic cycle results in the immediate destruction of the host cell, whereas the lysogenic cycle allows the host cell to continue living and dividing.
      2. In the lysogenic cycle, the viral DNA integrates into the host genome as a prophage, but in the lytic cycle, the viral DNA remains separate and does not integrate.
      3. The lysogenic cycle produces new phage particles immediately, leading to host cell lysis, whereas the lytic cycle delays phage production until environmental triggers activate the prophage.
      4. The lytic cycle is characterized by the dormant state of the phage within the host genome, while the lysogenic cycle actively uses the host cell's machinery to produce new phages.

      35 / 50

      35. Correct statements about HIV:

      1. Its 60 times greater than a RBC
      2. It Belongs to Group of Retroviruses
      3. Helical in shape
      4. Total 9 genes

      36 / 50

      36. Tick the incorrect statement:

      37 / 50

      37. What is a provirus?

      38 / 50

      38. Tick the correct statements :

      1. HIV targets the Helper T-cells
      2. Helper T-cells are part of innate immunity
      3. Helper T-cells helps to activate Cytotxic cells, B-lymphocytes (B-cells) and macrophages
      4. Helper T-cells act as activator of immune response

      39 / 50

      39. HIV targets T-cells because:

      40 / 50

      40. Which is incorrect about AIDS:

      41 / 50

      41. What is correct about AIDS:

      42 / 50

      42. Tick the correct statement about the Dengue Virus:

      1. The Aedes Mosquito is a Vector of the Dengue Virus
      2. It is a positive sense Single stranded Virus
      3. It can be transmitted by Blood

      43 / 50

      43. . Tick the correct virus according to below information:

      1. Vector: Bats
      2. Type: RNA virus
      3. Transmission: Airborne Droplets
      4. It affects:  The pulmonary system

      44 / 50

      44. Favorable pH for viral survival is:

      45 / 50

      45. Which Statement describes the Temperature and viral survival relationship:

      46 / 50

      46. The major symptom/s in Poliomyelitis are/is:

      47 / 50

      47. Which Of the following is not a viral disease?

      48 / 50

      48. Tick the correct sequence of steps involved in Lytic cycle of Bacteriophage.

      49 / 50

      49. Regarding Prions and Viroids, tick the correct Statement/s:

      1. These both are called Subviral particles
      2. Prions are infectious proteins comprised of 29 Amino acids and 29 Disulfide bonds
      3. Prions may cause Mad Cow disease in cattle while viroids can cause plant diseases
      4. There is no evidence of human disease caused by viroids

      50 / 50

      50. Hepatitis is________and____________are types of Hepatitis.

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