What type of genetic material is found in the virus?
Correct answer: D. DNA or RNA
- A. DNA and RNA
- B. DNA
- C. RNA
- D. DNA or RNA
Explanation
Option D is correct since viruses can store decoded information ( genetic information ) to a limited extent. Since the amount of DNA or RNA stored is measured according to the number of base pairs, viruses accommodate only a small number of base pairs. Option A is incorrect as both DNA and RNA cannot be stored in a virus as the head or capsule region can store DNA or RNA. Option B is incorrect as not all viruses contain only DNA as the genetic material. Option C is incorrect as not all viruses contain only RNA as the genetic material.
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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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