Protein Synthesis Simulation
Protein synthesis converts information in DNA into a folded chain of amino acids. This simulation connects each visible molecular action to transcription, RNA processing and translation.
Learning objectives
- Explain how RNA polymerase copies a gene.
- Describe RNA processing and export.
- Connect codons, anticodons and amino acids.
- Predict how molecular availability changes production rate.
Key concepts
DNA remains protected in the nucleus. Messenger RNA carries a temporary copy. A ribosome reads mRNA three bases at a time, while tRNA delivers the matching amino acids.
Suggested experiments
- Reduce polymerase activity and compare mRNA completion time.
- Reduce available tRNA and observe translation pauses.
- Use one and four ribosomes to compare protein output.
Questions for exploration
- Why can many ribosomes read one mRNA?
- What happens if a codon has no matching tRNA?
Real-world applications
Antibiotics can block bacterial ribosomes. Some genetic changes alter a codon and therefore the amino-acid sequence. Cells regulate genes to make proteins only when needed.
Common misconceptions
DNA does not leave the nucleus during normal protein synthesis. Translation does not convert RNA into DNA; it uses RNA information to assemble a protein.