Download How Does DNA Determine the Traits of a SNORK

Name _______________________________________ Period ____ Date ____________________
PROTEIN FACTORY Analysis
Use your protein model to complete the following information: 5 pts each
1) How many amino acids are in the protein your group synthesized? _______________
2) The name of the protein you made is Trp-cage miniprotein. It is the smallest known protein
and comes from the saliva of a Gila monster. It qualifies as a protein because it has a stable
secondary structure of a helixes and bends. Below is a 3-D diagram of Trp-cage.
For more info on Trp-cage visit the Protein Data Base
(www.pdb.org)
3) Using your model, list the amino acids on lines below
in order using the 3 letter abbreviations. 20 pts
____-____-____-____-____-____-____-____-____-____
____-____-____-____-____-____-____-____-____-____
4) Why is Trp-cage a protein and not just a polypeptide? (see above)
At right is a DNA codon table, showing the DNA code letters for
each amino acid.
5) Can more than one codon code for the same amino acid?
_______ Explain.
6) Are tRNAs recycled? Explain
7) What was your job in the protein model activity? __________________________
Summarize what your job consisted of to build the protein model
Use your text book and notes along with your model to complete the following: 2pts each
1) Where in the cell is the DNA located? _________________________
2) Helicase does what to the DNA? ___________________________________
3) Only one side of the DNA is copied. What is this side called? ____________________
4) What is the side that is NOT copied called? _______________________________
5) What different nitrogen base had to be used to make mRNA? ______________
6) What is the formation of mRNA from DNA called? ___________________
7) How many genes were used in the activity_______________________
8) Where does the mRNA go after it is copied in nucleus? ____________________
9) What organelle reads the mRNA code? ________________________________
10)How many letters code for each amino acid? _____________
11)What is each set of 3 letters called on mRNA? ______________________
12)What molecule transports the proper amino acid to the ribosome? _____________
13)What is the matching code sequence on the tRNA called? _________________
14)Is tRNA reusable or only good for one time use? ___________________________
15)What is the process of building an amino acid chain from the mRNA code called? ________
16)What are the bonds between amino acids called? _____________________
17)What molecule must be removed to form a peptide bond? _______
18)Explain how a protein is made, starting with the DNA in the nucleus. 20 pts
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