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Notes – Protein Synthesis: Translation

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1 Notes – Protein Synthesis: Translation

2 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

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

4 Codon Code Glue this handout into student notebooks.

5 UCA CAT Glue this handout into student notebooks.

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

7 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

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

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

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

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