Question

Which of these is correct according to transduction?

(a) Specialized transduction is due to excision error

(b) F’ plasmid can act in specialized transduction

(c) Only specialized transduction in virus can be used to cause genetic variations

(d) Bacteriophage nucleic acid is dispensable for virulence

I got this question in semester exam.

Question is taken from Gene Mapping in Bacteria by Transduction in chapter Genomics : The Mapping and Sequencing of Genomes of Cytogenetics

Answer 1

Correct option is (a) Specialized transduction is due to excision error

To explain I would say: When the Lysigenic virus enters Lytic cycle its gene has to excise out of the bacterial genome. Imperfections in this excision can cause excision of a part of bacterial genome along with the circular viral genes. This results in specialized transduction.