1. Continuation: translation
Protein Synthesis
Continuation: translation

2. The central dogma Transcription carried out by RNA Polymerase
Translation performed on
ribosomes

3. Translation
Translation: The process of decoding an mRNA message into a protein.
Now that the DNA message has been transcribed into mRNA, the message must be read, or translated, by the ribosomes so the proteins can be made

4. The starting molecule
What is a codon? A Codon is made of three consecutive bases that specify a single amino acid
AUG UUC GGA ACU

5. The Genetic code (codon chart)
How do you read a codon?
1. Find the first letter of the codon in the
center circle of the chart
2. Find the second letter of the codon in the
next ring on the chart
3. Find the third letter of the codon on the
outer ring on the chart
4. Read the corresponding amino acid that will be made
5. Don’t forget start and stop!

6. The key players
mRNA carries coded instructions for translation from DNA in the nucleus to the ribosome
tRNA brings amino acids to the ribosome so it can build proteins
rRNA makes up ribosomes

7. Steps AUG signals start of a protein sequence
tRNA with the complementary mRNA bases carries amino acid to bind to the codon
This continues until a stop codon is reached
Ending molecule: a protein is made (Polypeptide)

8. Translation: practice
Fill in the complementary tRNA that will match up to the mRNA strand below.
Use the mRNA strand to find the first 3 amino acids using the codon chart:
_____________________ __________________
2. ______________________ A U G C

9. Figure 13.7
pg. 368

10. Figure 13.9 pg. 371