Biochemistry Basics – 79272

Assertion: Central dogma is the flow of information from DNA to mRNA and then decoding the information present in mRNA in the form of protein.
Reason: In retroviruses, the reverse of central dogma occurs.

A. Both the assertion and the reason are true and the reason is a correct explanation of the assertion

B. Both assertion and reason are true but the reason is not the correct explanation of the assertion

C. The assertion is true but the reason is false

D. The assertion and reason are false

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Correct Answer » B Explanation

Answer: B Both assertion and reason are true but the reason is not the correct explanation of the assertion
The flow of information from DNA to RNA to protein is termed the “central dogma” of molecular biology, and is descriptive of all organisms, with the exception of some viruses that have RNA as the repository of their genetic information. 
(i) One way flow of information (central dogma)
                   DNA(transcription) → RNA (translation) → proteins
(i) Reverse flow of transcription information
                  DNA(transcription) ↔RNA(translation) → proteins