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Types of RNA Video Lecture | Biology Class 11 - NEET
FAQs on Types of RNA Video Lecture - Biology Class 11 - NEET
| 1. What are the different types of RNA? |  |
Ans. There are three main types of RNA: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). mRNA carries the genetic information from DNA to the ribosomes, tRNA helps in translating the mRNA sequence into proteins, and rRNA forms an integral part of the ribosomes.
| 2. How does mRNA differ from tRNA and rRNA? | |
Ans. mRNA (messenger RNA) carries the genetic information from DNA to the ribosomes, providing the instructions for protein synthesis. On the other hand, tRNA (transfer RNA) is responsible for transferring the corresponding amino acids to the ribosomes according to the mRNA sequence. rRNA (ribosomal RNA) makes up the structural components of ribosomes and plays a crucial role in protein synthesis.
| 3. What is the function of tRNA in protein synthesis? | |
Ans. tRNA (transfer RNA) plays a crucial role in protein synthesis by bringing the correct amino acids to the ribosomes. Each tRNA molecule carries a specific amino acid and has an anticodon sequence that is complementary to the codon sequence on the mRNA. This allows tRNA to accurately match the amino acids to their corresponding codons during translation.
| 4. How does rRNA contribute to protein synthesis? | |
Ans. rRNA (ribosomal RNA) forms an essential part of ribosomes, which are the cellular structures where protein synthesis occurs. It helps in the assembly of ribosomes and provides a platform for mRNA and tRNA interactions. rRNA also catalyzes the formation of peptide bonds between amino acids, which is a crucial step in protein synthesis.
| 5. Can RNA perform other functions besides protein synthesis? | |
Ans. Yes, RNA can perform various other functions besides protein synthesis. For example, small nuclear RNA (snRNA) plays a role in the processing of pre-mRNA molecules, while microRNA (miRNA) regulates gene expression by binding to target mRNA molecules. Additionally, long non-coding RNA (lncRNA) has been implicated in various cellular processes, including gene regulation, chromatin remodeling, and X-chromosome inactivation.
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