Notes – Protein Synthesis: Translation

Terms Gene = a piece of the chromosome that contains instructions for one protein Codon = a three-letter sequence in mRNA that codes for an amino acid Gene definition can be cut if covered in notes-transcription

Codon Code Single strand of DNA Codon mRNA Alanine Arginine Leucine Amino acids within a polypeptide Single strand of DNA Codon Code

Codon Code Glue this handout into student notebooks.

UCA CAT Glue this handout into student notebooks.

Translation: RNA to protein A ribosome attaches to a start codon on the RNA molecule Lysine tRNA Phenylalanine Methionine Ribosome mRNA Start codon

Translation: RNA to protein A ribosome attaches to a start codon on the RNA molecule tRNA molecules bring amino acids to the ribosome, tRNA’s that match the mRNA codon will attach Lysine tRNA Phenylalanine Methionine Ribosome mRNA Start codon

Translation: RNA to protein Ribosome attaches amino acids from each tRNA to form a growing protein molecule tRNA Ribosome mRNA Lysine Translation direction

Translation: RNA to protein When the ribosome reaches a “Stop Codon” translation ends and the completed protein is released Polypeptide Ribosome tRNA mRNA

Codon Code Single strand of DNA Codon mRNA Alanine Arginine Leucine Amino acids within a polypeptide Single strand of DNA Codon Code