Which of the following is the best desciption of bacteriophage?
Correct answer: D. Obligate intracellular parasite
- A. Fungus
- B. Prokaryote
- C. Living organism
- D. Obligate intracellular parasite
Explanation
Bacteriophages are actually obligate intracellular viruses. This means that they can only replicate and complete their life cycle by infecting and taking over the machinery of host bacterial cells. So, option D is correct.
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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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