Name: _____________________________________________________
Period: ___________
DNA Replication Worksheet
Complete all of the following:
1.
2.
3.
4.
5.
6.
Identify and label the letter X.
Identify and label the letter Y.
Label and color all bases with the appropriate letter and color. Color code your key to match.
Identify and label the parent strands.
Identify the replication fork and add the enzyme helicase to the area where this is happening.
Look at the area labeled with a 2; label the enzyme that is working to make this happen.
7. Below is a single strand of DNA. Below each letter write the complementary strand of DNA.
A–T–G–C–G–G C–G–A–T–T–T–A–A–G–C
8. In the box below, fill in the complementary strand of DNA to create a double strand.
Next to the box, using two different colored pencils, create two new strands from the original strand in
the box. Label which color represents the original strand and which color represents the new strand.
T
A
G
G
C
9. Why do you think DNA replication important to the growth and development of a multi-cellular
organism?
10. What is the function of the enzyme DNA polymerase?
11. What is the function of the enzyme ligase?
12. When replication is complete, how do the 2 new DNA molecules compare to each other and the original
DNA molecule?
13. What do you think would happen if the process of replication does not happen correctly?
14. Where is the “code” located in a DNA molecule? Explain.