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प्रश्न
In the processing of hnRNA in eukaryotic cell, the primary transcripts are processed in the following sequence.
पर्याय
Splicing, Capping, Tailing
Tailing, Capping, Splicing
Splicing, Tailing, Capping
Splicing, Tailing, Capping
MCQ
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उत्तर
Splicing, Capping, Tailing
Explanation:
In eukaryotic hnRNA (pre-mRNA) processing:
- Splicing → Removal of introns and joining of exons.
- Capping → Addition of a 5′ methylguanosine cap to protect RNA from degradation and help in ribosome binding.
- Tailing (Polyadenylation) → Addition of a poly-A tail at 3′ end for stability and export from nucleus.
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