Directions : In the following questions a statement of assertion (A) ...
Teminism is popularly known as reverse transcription, i.e., DNA can be synthesized by RNA.
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Directions : In the following questions a statement of assertion (A) ...
Assertion (A): Teminism is bidirectional flow of information.
Reason (R): It requires DNA dependent RNA polymerase enzymes.
The correct answer is option C, which states that assertion (A) is true but reason (R) is false. Let's discuss the explanation in detail.
Explanation:
Teminism is a process in molecular biology that involves the reverse transcription of RNA into DNA. It was discovered by Howard Temin in the 1970s and is named after him. Teminism is an important process in retroviruses, which are RNA viruses that replicate their genetic material by reverse transcription.
Assertion (A): Teminism is the bidirectional flow of information.
This statement is true. Teminism involves the flow of genetic information in both directions, i.e., from RNA to DNA and from DNA to RNA. In the case of retroviruses, the RNA genome is reverse transcribed into DNA by the enzyme reverse transcriptase. This DNA is then integrated into the host cell genome and can be transcribed into RNA again, allowing the virus to replicate.
Reason (R): It requires DNA-dependent RNA polymerase enzymes.
This statement is false. Teminism does not require DNA-dependent RNA polymerase enzymes. Instead, it requires the enzyme reverse transcriptase, which is responsible for the reverse transcription of RNA into DNA. Reverse transcriptase is unique to retroviruses and is not found in the host cell. It uses an RNA template and synthesizes a complementary DNA strand.
Therefore, while assertion (A) is true and correctly describes Teminism as a bidirectional flow of information, reason (R) is false as it incorrectly states that it requires DNA-dependent RNA polymerase enzymes. The correct enzyme involved in Teminism is reverse transcriptase.
In conclusion, option C is the correct answer as it accurately represents the relationship between the assertion and the reason.
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