Download Click BUILD A DNA MOLECULE

Name: ___________________________________________ Date: ___________________ Period: _____
Translation Internet Lesson
Answer the questions below by visiting the web site below.
http://gslc.genetics.utah.edu/units/basics/
Click BUILD A DNA MOLECULE
1. a. Which two parts make up the sides of a “double helix”? b. Which parts make up
the “rungs” of the DNA ladder?
a. __________________________________________________
b. __________________________________________________
2. In the blue box, drag the following bases (ACGTT) to the left side of the DNA ladder.
Fill in the DNA bases.
Click the BACK button and then click TRANSCRIBE AND TRANSLATE A GENE
3. a. What does each gene code for?
b. How many genes make up a human being?
a. _____________________________________
b. _____________________________________
4. Which two steps are performed to make a protein? ________________________________________
5. Define the following:
a. TRANSCRIPTION. __________________________________________________________
___________________________________________________________________________
b. TRANSLATION. ____________________________________________________________
___________________________________________________________________________
6. What does a string of amino acids create? _______________________________________________
Right Side Reading: Transcription
7. Where does transcription take place? ___________________________________________________
8. Which molecule receives a copy of the gene sequence during transcription? ____________________
Right Side Reading: Translation
9. Which object reads mRNA? __________________________________________________________
10. What is the start sequence? ___________________________
11. What do the stop codons tell a ribosome?
_________________________________________________________________________________
Click CLICK HERE TO BEGIN
12. You are given a strand of DNA. You must perform transcription and type in the proper RNA bases.
Fill in the boxes below indicating which RNA bases you entered.
13. After transcription is finished, what happens to the DNA that was used?
_________________________________________________________________________________
14. Examine the UNIVERSAL GENETIC CODE chart. Methionine (MET) is the start codon. Which
three RNA bases create the amino acid methionine (MET)? ________________________
15. Move the mouse over the strand of mRNA. Click the mouse button when you find the START codon.
Which amino acid corresponds with the start codon? _______________________________________
16. You now must perform translation. Drag the correct amino acid over to the flashing black box.
Continue to drag the correct amino acid over until the end is reached. Which amino acids did you
drag over to the ribosome?
AUG = ____________________
GUG = _________________________
CUA = ____________________
UUC = _________________________
GAC = ____________________
UAG = _________________________
17. How many amino acids exist? _________________________