Gce Model Questions Vol1 2022 Biology Question 34
Practice objective / multiple choice question 34 from the 2022 Gce Model Questions Vol1 Biology examination.
A lytic virus infects a culture of host cells. In the untreated situation each infected cell releases a burst size of 100 virions after a latent period of 4 h. The culture initially contains \(10^{5}\) uninfected cells, and each released virion instantly infects a new cell (no loss). Assuming the infection proceeds for a total of 12 h, calculate the total number of virions present at the end of this period. An antiviral drug reduces the burst size by 30 % and increases the latent period by 20 %. Under the same initial conditions and total time of 12 h, what is the percentage reduction in the total number of virions compared with the untreated case? Give your answer to one decimal place.
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This is Gce Model Questions Vol1 2022 Biology Question 34. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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