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Total Questions : 463 | Page 47 of 47 pages
Question 461. . Which of the following statements is correct?
  1.    Up to 10% of human tumours have a viral risk factor
  2.    Up to 40% of human tumours have a viral risk factor
  3.    Up to 30% of human tumours have a viral risk factor
  4.    Up to 20% of human tumours have a viral risk factor
 Discuss Question
Answer: Option D. -> Up to 20% of human tumours have a viral risk factor
Question 462. . The extracellular phage number increases until a constant titer at the end of the multiplication cycle. This time interval is termed as
  1.    eclipse period
  2.    rise period
  3.    latent period
  4.    burst size
 Discuss Question
Answer: Option B. -> rise period
Question 463. .  Viruses can be purified based on their size and density by using
  1.    gradient centrifugation
  2.    differential centrifugation
  3.    precipitation
  4.    none of these
 Discuss Question
Answer: Option A. -> gradient centrifugation

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