Name ___________________________________________Per ___ Date _________
Web Quest: Tour of the Basics…DNA to Proteins
Log on to: http://gslc.genetics.utah.edu/units/basics/tour/
Click on “What is DNA?” Click NEXT to zoom into ear cell then all the way to double helix. Answer the questions. 1. What is DNA? ________________________________________________________
2. What does “DNA” stand for? ___________________________________________ Click NEXT 3. What is the four-letter DNA alphabet? __________________________
4. What are the special rules by which the alphabet pieces bond together?
____________________________________________________
Click NEXT to get to “What is a Gene?”
5. What is a gene? ______________________________________________________
6. What are genes made of? ______________________________________________
7. How many genes do humans have?_______________________________________
8. For what molecule do genes contain the instructions for building? ______________
9. List examples of proteins: ___________________________________________ ________________________________________________________________________________________________________________________________________________
Click on NEXT to get to “What is a Chromosome?”
10. How long is DNA from one human Cell?__________________________________
11. What is a chromosome? ________________________________________________
12. How many chromosomes does a human cell hold? ___________________________
13. How are the human sex chromosomes labeled?_____________________________
14. How many chromosomes do the following organisms have? Mosquitos ____________Onions_____________Carp (fish)_______________
15. How many different kinds of proteins does one cell contain? ___________________
16. Why are nerve cells branched? _____________________________________
17. What role do nerve cells play in sending pain signals? ___________________________________________________________________
18. What provides the “blueprint” for making a protein? ________________________
19. What role does RNA play in making a protein? ____________________________________________________________________
20. Where is a protein made…nucleus or cytoplasm? __________________________
21. What is the ribosome's role? _____________________________________________
Go to the main “The Basics and Beyond” page Click on Transcribe and Translate a Gene Use the simulation to transcribe and translate a gene. Then answer the questions below.
22. When transcribing a gene, which bases of RNA would match with the following DNA sequence? GGA ATA GCC GGA TAG _________________________
23. The two-step process by which cells read a gene and produce a string of amino acids that will eventually become a protein is called:
____________________ and ______________________
24. How is mRNA different from DNA?
25. What is the correct starting position for translation? __________________________
26. Write the amino acids used to assemble your protein in order below.
________________________________________________________________________
27. Where does translation take place? ___________________________________
28. Once assembled, what is the key to a protein’s unique function?