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LD50 of the two pathogenic strains A and B are 20 and 60 cells, respectively. Which one of the following statements is TRUE?  
  • a)
    Strain A is more virulent
  • b)
    Strain B is more virulent  
  • c)
    Both strains A and B are avirulent
  • d)
    Both strains A and B are equally virulent 
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
LD50 of the two pathogenic strains A and B are 20 and 60 cells, respec...
Explanation:

  • Virulence: The degree of pathogenicity of a microorganism as indicated by the severity of the disease produced and its ability to invade the tissues of the host organism.

  • LD50: The lethal dose 50 (LD50) is the amount of an agent that kills 50% of the test subjects, which is used to measure the virulence of a pathogen.

  • Here, the LD50 of the two pathogenic strains A and B are 20 and 60 cells, respectively.

  • It means that the strain A is more virulent than strain B as it requires fewer cells to cause the death of 50% of the test subjects.

  • Thus, option 'A' is the correct answer.

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LD50 of the two pathogenic strains A and B are 20 and 60 cells, respectively. Which one of the following statements is TRUE? a)Strain A is more virulentb)Strain B is more virulent c)Both strains A and B are avirulentd)Both strains A and B are equally virulentCorrect answer is option 'A'. Can you explain this answer?
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LD50 of the two pathogenic strains A and B are 20 and 60 cells, respectively. Which one of the following statements is TRUE? a)Strain A is more virulentb)Strain B is more virulent c)Both strains A and B are avirulentd)Both strains A and B are equally virulentCorrect answer is option 'A'. Can you explain this answer? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about LD50 of the two pathogenic strains A and B are 20 and 60 cells, respectively. Which one of the following statements is TRUE? a)Strain A is more virulentb)Strain B is more virulent c)Both strains A and B are avirulentd)Both strains A and B are equally virulentCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for LD50 of the two pathogenic strains A and B are 20 and 60 cells, respectively. Which one of the following statements is TRUE? a)Strain A is more virulentb)Strain B is more virulent c)Both strains A and B are avirulentd)Both strains A and B are equally virulentCorrect answer is option 'A'. Can you explain this answer?.
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