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Assertion : Polycistronic mRNA, found in...

Assertion : Polycistronic mRNA, found in prokaryotes, specify a number of polypeptides.
Reason : Monocistronic mRNA, found in eukaryotes, specify only a single polypeptide.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

if both assertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Terms:** - **Polycistronic mRNA:** This type of mRNA is found in prokaryotes and can code for multiple polypeptides (proteins) from a single mRNA molecule. This means that one mRNA transcript can lead to the synthesis of several different proteins. - **Monocistronic mRNA:** This type of mRNA is found in eukaryotes and codes for only one polypeptide. Each mRNA molecule corresponds to a single protein. 2. **Analyzing the Assertion:** - The assertion states that "Polycistronic mRNA, found in prokaryotes, specify a number of polypeptides." This is true because prokaryotic mRNA can indeed code for multiple proteins due to the presence of multiple coding sequences (cistrons) within a single mRNA strand. 3. **Analyzing the Reason:** - The reason states that "Monocistronic mRNA, found in eukaryotes, specify only a single polypeptide." This is also true because eukaryotic mRNA typically contains only one coding sequence, leading to the production of a single protein. 4. **Evaluating the Relationship:** - While both the assertion and reason are correct statements, the reason does not explain the assertion. The assertion describes the nature of polycistronic mRNA, while the reason describes monocistronic mRNA. They are related concepts but do not directly explain one another. 5. **Conclusion:** - Therefore, the conclusion is that both the assertion and the reason are correct, but the reason is not the correct explanation of the assertion. **Final Answer:** - Both the assertion and reason are correct, but the reason is not the correct explanation of the assertion. ---
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