Question

When a bacteriophage, in its lytic phase, carries some of the bacterium partially digested chromosome with it to another host cell, the process is called

• A. generalised transduction
• B. conjugation
• C. transformation
• D. specialised transduction

Answer 1

Answer: (A)

generalised transduction

Answer 2

When certain proviruses turn into virulent viruses thereby causing lysis of host cell, they may carry with them segments of host?? DNA. Such virus particles carrying a segment of DNA from one host infects another host which is different than the first one, the latter may inherit some of the properties of the former host due to transfer of DNA segment through infecting phase. This phenomenon of transfer of genetic material from one bacterial strain to another through the agency of virus is called transduction. In conjugation, genetic material is transferred through a conjugation tube, when two strains come in contact. In transformation, genetic material is released from one strain and a part may be acquired from another strain, which thus gets transformed without coming in contact with the other strain.