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A specialized transducing virus attacks a healthy bacterial cell. What will be the virulence of the viruses produced by this bacterial cell after infection?

(a) They will me more virulent than original one

(b) They will be equally virulent as original one

(c) The virulence will depreciate

(d) No virulence

I had been asked this question during an online exam.

This key question is from Gene Mapping in Bacteria by Transduction topic in division Genomics : The Mapping and Sequencing of Genomes of Cytogenetics

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Right answer is (d) No virulence

The best explanation: This is because some part of the viral genome is compromised for this improper excision making it specialized transducing phage. Without the complete viral genome, the resultant viruses will not be able to express their infective activity.

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