Assertion. Temin modified Crick's ‘central dogma’ to ‘central dogma reverse.’
Reason. Crick was of the view that flow of genetic information in cells is bidirectional.

Options

A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion .
B. If both Assertion and Reason are true but Reason is not a correct explanations of the Assertion
C. If Assertion is true but the Reason is false .
D. If both Assertion and Reason are false.

Answer

To solve the question regarding the assertion and reason provided, we will break down the concepts step by step.

### Step 1: Understand the Assertion
The assertion states that "Temin modified Crick's ‘central dogma’ to ‘central dogma reverse’."
- **Explanation**: The central dogma of molecular biology, proposed by Francis Crick, describes the flow of genetic information from DNA to RNA to proteins. Temin, along with Baltimore, proposed a modification to this concept, suggesting that in some cases, RNA can be reverse-transcribed into DNA, which is contrary to Crick's original idea. This led to the term "central dogma reverse."

### Step 2: Understand the Reason
The reason states that "Crick was of the view that the flow of genetic information in cells is bidirectional."
- **Explanation**: Crick actually proposed that the flow of genetic information is unidirectional, meaning it goes from DNA to RNA to proteins. He did not believe that information could flow back from RNA to DNA. Therefore, the reason provided is incorrect.

### Step 3: Determine the Relationship Between Assertion and Reason
- **Conclusion**: The assertion is true because Temin did modify the central dogma to include reverse transcription. However, the reason is false because Crick believed in a unidirectional flow of information, not a bidirectional one.

### Final Answer
The correct answer is that the assertion is true, but the reason is false.

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