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Name: _____________________________ Period: ______ Date: _________________________
Mini Internet Scavenger Hunt: RNA &
Protein Synthesis
RNA Structure

http://www.visionlearning.com/library/module_viewer.php?mid=63
1. What does RNA stand for?
2. What about RNA is similar to DNA?
3. What about RNA is different from DNA?
Protein Synthesis (in general)

http://www.pbs.org/wgbh/aso/tryit/dna/protein.html
4. What is the purpose of protein synthesis?
Click on the DNA Workshop Activity, then click on protein synthesis.
5. How long can an mRNA sequence be for real?
6. What is a codon and where can we find it?
7. What is an anticodon and where can we find it?
8. What is a tRNA and what is attached to it?
9. When does this process end?
Protein Synthesis (more specifically)
 http://web.jjay.cuny.edu/~acarpi/NSC/12-dna.htm
10. What is the first step in protein synthesis called?
11. Here is a summary of the steps in the first part of protein synthesis:

the DNA ___________________________

______________ is made by pairing up bases, A with _______ and G with
________.
12. Where does the mRNA go in the cell after transcription?
13. What is the second step in protein synthesis called?
14. Here is a summary of the steps in the second part of protein synthesis:

mRNA is read ____ bases at a time (three bases are called a
__________________) by pairing with a complementary base sequence on
______________ called an _______________________. Each tRNA is specific
for one _________________________. That means each tRNA only has 1
amino acid. It’s not random.

Amino acids are linked by a _________________________ bond to make a
protein.
 http://www.wisc-online.com/objects/index_tj.asp?objID=AP1302
Watch the animation. Pay special attention to how each codon matches a specific
anticodon, which in turn matches a specific amino acid.
16. Is only one copy of DNA made? Explain.
17. Is only one polypeptide chain (protein) made at a time? Explain.
 http://www.geneticengineering.org/chemis/Chemis-NucleicAcid/RNA.htm
18. Besides mRNA and tRNA, what is the third kind of RNA involved in making
proteins?
19. – 21. Tell what is happening in each step of translation. You don’t need to name
the steps, but describe in your own words what’s happening.
22. – 24. Tell what is happening in each step (pair of pictures)of transcription. You
don’t need to name the steps, but describe in your own words what’s
happening.
Mutations (when things go wrong):

http://biology.unm.edu/ccouncil/Biology_124/Summaries/T&T.html
25. Do mutations always have an effect on the organism?
Describe what happens for these three mutations:
26. insertion:
27. deletion:
28. substitution:
If you have time, scroll down on the same page and see how well you would do on the
quiz…
Original images:
http://www.geneticengineering.org/chemis/ChemisNucleicAcid/Graphics/Transcription.gif