Q.1
Which of the following is a type of RNA molecule of more than 200 nt and do not code for protein?
- Long Non-Coding RNA (lncRNA): By definition, long non-coding RNAs (lncRNAs) are RNA transcripts longer than 200 nucleotides that lack protein-coding potential (open reading frames). They function in epigenetic modulation, chromatin remodeling (e.g., Xist), transcriptional regulation, and splicing.
- Small Non-Coding RNAs:
- siRNA: Small interfering RNA, typically $20-25\text{ nt}$.
- miRNA: MicroRNA, typically $21-24\text{ nt}$.
- snoRNA: Small nucleolar RNA, typically $60-300\text{ nt}$, primarily guiding chemical modifications of ribosomal RNAs.
- Conclusion: Non-coding RNA molecules greater than 200 nucleotides are classified as lncRNA (Option 3).
Correct option: (3) IncRNA
Explanation not matching this question?
क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?
Report
Want to practice this paper in exam conditions?
क्या आप परीक्षा जैसे माहौल में अभ्यास करना चाहते हैं?
Test yourself in 5-question batch format with timer and hidden answers.
5-प्रश्नों के बैच फॉर्मैट, टाइमर और छिपे उत्तरों के साथ खुद को परखें।
Start Practice Mode →
प्रैक्टिस टेस्ट मोड शुरू करें →