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Assertion : Eukaryotic mRNA requires pos...

Assertion : Eukaryotic mRNA requires post transcription processing for formation of functional mRNA.
Reason : Eukaryotic transcripts possess extra non-functional segments called introns.

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.

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion**: The assertion states that eukaryotic mRNA requires post-transcription processing to form functional mRNA. This means that after the initial transcription of DNA into RNA, additional modifications are necessary for the RNA to be functional. **Hint**: Consider what modifications are made to mRNA after transcription in eukaryotic cells. 2. **Understanding the Reason**: The reason provided explains that eukaryotic transcripts contain non-functional segments known as introns. Introns are sequences that do not code for proteins and need to be removed during the processing of mRNA. **Hint**: Think about the difference between coding and non-coding sequences in eukaryotic genes. 3. **Connection between Assertion and Reason**: The presence of introns in eukaryotic transcripts necessitates post-transcription processing, specifically splicing, where introns are removed, and exons (the coding sequences) are joined together. This process is essential for producing a mature mRNA that can be translated into a functional protein. **Hint**: Reflect on the process of splicing and how it relates to the formation of functional mRNA. 4. **Conclusion**: Since both the assertion and reason are true, and the reason provides a correct explanation for the assertion, we conclude that both statements are correct. **Final Answer**: Both assertion and reason are true, and the reason is the correct explanation of the assertion. ### Summary of the Answer: Both assertion and reason are true, and the reason is the correct explanation of the assertion.
### Step-by-Step Solution: 1. **Understanding the Assertion**: The assertion states that eukaryotic mRNA requires post-transcription processing to form functional mRNA. This means that after the initial transcription of DNA into RNA, additional modifications are necessary for the RNA to be functional. **Hint**: Consider what modifications are made to mRNA after transcription in eukaryotic cells. 2. **Understanding the Reason**: The reason provided explains that eukaryotic transcripts contain non-functional segments known as introns. Introns are sequences that do not code for proteins and need to be removed during the processing of mRNA. ...
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