1. Messenger RNA (mRNA):
- Transcription: mRNA is created from DNA in a process called transcription.
- Carries genetic code: mRNA carries the genetic code from DNA to ribosomes.
2. Ribosomal RNA (rRNA):
- Forms ribosomes: rRNA is a major component of ribosomes, the cellular machinery where protein synthesis occurs.
- Provides structure: rRNA provides the structural framework for ribosomes and helps align mRNA and tRNA during translation.
3. Transfer RNA (tRNA):
- Delivers amino acids: tRNA molecules are responsible for carrying amino acids to ribosomes.
- Matches codons: tRNA has an anticodon that matches a specific codon on mRNA, ensuring the correct amino acid is added to the growing polypeptide chain.
Therefore, RNA does not directly make anything tangible. Instead, it acts as a crucial intermediary in the process of protein synthesis, translating the genetic code from DNA into proteins.
In simpler terms, think of it like this:
* DNA: The blueprint or instructions for building a protein.
* RNA: The messenger that takes the instructions from DNA and delivers them to the protein-building machinery.
* Protein: The final product, built according to the instructions.
