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

Updated On: Jul 27, 2022
  • generalised transduction
  • conjugation
  • transformation
  • specialised transduction
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The Correct Option is A

Solution and Explanation

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.
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Concepts Used:

Biological Classification

The process of grouping living organisms into categories is called biological classification. The most modern 5-kingdom classification was put ahead by an eminent scientist R.H.Whittaker. The five-kingdom classification is based on the criteria like cell structure, mode of nutrition, body form, and reproduction. One of the most important characteristics of this system is that it follows the evolutionary sequence of living organisms. The organisms are classified into distinct taxa or levels like Kingdom, Phylum, Division, Class, Order, Family, Genus, and Species. The 5 kingdoms are as follows:

Biological Classification