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

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
In eukaryotes, the monocistronic structural genes have interrupted coding sequences i.e., the genes in eukaryotes are split. The coding sequences or expressed sequences are defined as exons. They are said to be those sequence that appears in mature or processed RNA. The exons are interrupted by introns or intervening sequences which do not appear in mature or processed RNA. Thus, post-transcription processing, which involves splicing of introns and fusion of exons, is required to form functional mRNA.
So, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.

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(a) Both assertion and reason are correct and the reason is correct explanation of assertion
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(c) Assertion is correct, but reason is incorrect
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(e) Assertion is incorrect but reason is correct.

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