Given below are two statements, one is labell | vedclass

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(D) Assertion $(A)$ is correct: In eukaryotes, the primary transcript, known as $hnRNA$ (heterogeneous nuclear $RNA$), is non-functional because it co

Vedclass · Accepted Answer

Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.

Vedclass · Answer

(D) Assertion $(A)$ is correct: In eukaryotes, the primary transcript, known as $hnRNA$ (heterogeneous nuclear $RNA$), is non-functional because it contains both coding sequences (exons) and non-coding sequences (introns). It must undergo splicing to remove introns and join exons to become functional $mRNA$.Reason $(R)$ is correct: In bacteria (prokaryotes), there is no defined nucleus, and transcription and translation occur in the same compartment (cytoplasm). Furthermore, bacterial $mRNA$ does not require complex processing like splicing because it lacks introns.Conclusion: While both statements are scientifically accurate, the Reason $(R)$ describes the nature of bacterial gene expression and does not explain why eukaryotic $hnRNA$ contains introns. Therefore, Reason is not the correct explanation of Assertion.

Similar Questions

$A$: Single $DNA$ dependent $DNA$ polymerase catalyses transcription of all types of $RNA$ in all except bacteria.
$R$: Structural genes in bacteria are monocistronic.

What do the processes $1$ and $2$ represent in the following sequence?
$TAC \, AAG \, GCG \, AUA \, CGA$
$\downarrow (1)$
$AUG \, UUC \, CGC \, UAU \, GCU$
$\downarrow (2)$
$Met - Phe - Arg - Tyr - Ala$

Which enzyme is primarily required for the process of transcription?

$RNA$ polymerase $II$ is responsible for the transcription of . . . . . .

Which factor is important for termination of transcription?

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