1. Summarize two types of DNA mutations
Homework: Homework Packet 5, Practice #2

2. Write the DNA sequences down with the corresponding mRNA sequence
Quick Practice…
Write the DNA sequences down with the corresponding mRNA sequence
GCATATCG
ATCGGGAAAT

3. What happens when the DNA mutates?

4. Types of RNA reading
Directions: read and annotate the article then answer the analysis questions individually

5. Protein Synthesis Overview
Protein synthesis is the process of making proteins
Two steps
1. Transcription (DNAmRNA)
2. Translation (mRNAAmino acid chain/protein)
Purpose of translation: To take the mRNA strand that was made from DNA and create an amino acid chain, which will fold into a functional protein

6. Location of Translation
Translation occurs in the cytoplasm on the ribosome in both prokaryotes and eukaryotes

7. Steps of Translation
1. mRNA leaves the nucleus and binds to the ribosome (made of rRNA)
2. The first 3 letters (a codon) on mRNA is ‘read’
3. the tRNA gets the corresponding amino acid from the cytoplasm and brings it to the ribosome
4. The next three letters are read and the process repeats until a STOP codon is reached

8. Peptide Bonds
After the tRNA brings the amino acid to the ribosome, a peptide bond forms between each amino acid
This creates a chain of amino acids, which is a protein

9. Label the diagram with the correct number from the steps

10. How do we determine which amino acid goes with which codon?
AUG 
GGA
CCU

11. Codon Chart Practice

12. Gene to Protein

13. Protein Synthesis Stations
Travel to each station (there are two copies of each station) with a partner from your table
Make sure the station number matches up with the correct number in the table
Answer the questions in the boxes provided
You may need to use your codon chart!
When you are finished answer the reflection questions on a separate sheet of paper 

14. Exit Ticket
Draw a labeled diagram or illustrations that depicts transcription and translation

15. What is the function of tRNA during translation?
Turn in Homework Packet #5
No homework over the weekend
DNAProtein Test on 3/7 (Wednesday)

16. Alien Protein Synthesis
We’ve discovered small sequences of alien DNA
Your job is to take the DNA, transcribe into mRNA and then take the mRNA and translate it into an amino acid sequence
Using the amino acid sequence you will determine that physical traits of your alien
Then, you will draw a picture of your alien
Finally- you will introduce a mutation into your alien and see how it changes the physical traits