Question

RNA acts as genetic material in

• A. TMV
• B. QB bacteriophage
• C. All of the above
• D. HIV

Answer 1

The correct option is C All of the above

Part 1: Introduction to genetic material
Genetic material in an organism is a molecule that contains all the genetic information and can help in the transfer of the genetic information from one generation to the other. DNA acts as genetic material in the majority of organisms, however, some viruses may have RNA as their genetic material.

Part 2: Viruses
Viruses are acellular structures composed of a nucleic acid and a protein coat. Viruses can have either single stranded or double stranded DNA or RNA as their genetic material.

Part 3: RNA as genetic material
Viruses such as TMV, HIV, QB bacteriophage, influenza virus, etc., have single stranded RNA as their genetic material.
Viruses such rice dwarf virus, wound tumour virus, etc., have double stranded RNA as their genetic material.

Final answer
(d) All of the above