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GATE 2024 BT – Question 21

General Biology · Microbiology: Microbial diseases, host-pathogen interactions, antibiotics and resistance, two-component system, bacterial communication, viruses · 1 mark · Multiple choice

Which one of the following bacteriophages has a genome composed of single stranded circular DNA?

  1. ØX174
  2. λ
  3. T5
  4. P1

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Show answer and explanation

Correct answer: (A) ØX174

Explanation

ΦX174 has a small single-stranded circular DNA genome. λ, T5 and P1 have double-stranded DNA.