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The pore size for the removal of viruses is _______________

(a) 20 nm

(b) 30 nm

(c) 25 nm

(d) 35 nm

I had been asked this question by my school teacher while I was bunking the class.

This intriguing question comes from Media Design and Preparation for Bioprocesses in chapter Equipping a Fermentation Laboratory, the Design and Preparation of Media for Bioprocesses of Fermentation Technology

1 Answer

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Best answer
Right choice is (a) 20 nm

Explanation: The pore size of the filtration membrane for the removal of the virus is 20 nm. The viruses are smaller than bacteria and therefore the pore size for the removal of the virus is less than that of bacteria. Viruses also reproduce inside the bacteria and can infect them which are commonly referred to as bacteriophage.

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