1. TRANSLATION NOTES

2. “3 letter words that code for amino acids”
How to crack the code…
3 digit code (triplets)
“3 letter words that code for amino acids”

3. Base Pairing mRNA – codon tRNA – anticodon mRNA AUG CCU CAU AUC AUU
tRNA UAC GGA GUA UAG UAA

4. tRNA Structure

5. Amino Acid Codon Chart

6. mRNA AUG CCU CAU AUC UAA
tRNA UAC GGA GUA UAG AUU
Amino Acid Met Pro His Iso stop

7. 3 Steps of Translation making proteins 1. Initiation 2. Elongation 3
3 Steps of Translation making proteins 1. Initiation 2. Elongation 3. Termination

8. Step 1: Initiation Ribosome attaches to the mRNA
b) Start codon is always AUG

9. Step 2: Elongation a) tRNA anticodon matches with codon on mRNA
b) Peptide bonds are formed between the amino acids

10. Elongation (continued)
c) A.A. released from tRNA
d) Ribosome moves down the mRNA and continues adding A.A.

11. Step 3: Termination The ribosome reaches one of three stop
codons (UAA, UAG, UGA)
b) The mRNA and protein (polypeptide chain)
released