Where is the double stranded DNA of the bacteriophage found?
Correct answer: D. Head
- A. Tail
- B. Sheath
- C. Collar
- D. Head
Explanation
Option D is correct since the double-stranded DNA molecule is present within the head. The upper hexagonal-shaped part is the head. Moreover, these are the tad-pole-shaped viruses that attack bacteria and were first discovered by Twort.
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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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