Asked in PMC Practice Test 29 (2021) 2021Moderate

Which type of viruses infect E.Coli bacteria?

Correct answer: A. T-phages

  • A. T-phages
  • B. P-phages
  • C. Both
  • D. None

Explanation

Bacteriophages, or simply phages, are viruses that infect and replicate within bacteria. There are various types of bacteriophages, and some of them infect Escherichia coli (E. coli) bacteria. These bacteriophages are specific to E. coli and have evolved to recognize and infect this particular bacterial species. One well-known example of a bacteriophage that infects E. coli is the T4 bacteriophage. T4 is a type of bacteriophage that belongs to the family Myoviridae and is commonly used in molecular biology research. It infects E. coli and follows the lytic cycle, ultimately leading to the lysis of the bacterial cell and the release of newly formed phage particles.

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About Viruses

Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.

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