DNA Replication Worksheet - Biology
DNA and Replication
Part A:
1. What is the function of DNA in cells?
2. Describe the components and structure of a DNA nucleotide. Draw a nucleotide.
3. List the names and abbreviations of the 4 bases
4. Why is DNA called a double helix?
5. What forms the sides of the DNA ladder?
6. What forms the rungs of the DNA ladder?
7. Where is DNA found?
Part B:
1. What is meant by the term base-pairing? How is base-paring involved in DNA replication?
2. Explain how DNA is replicated. In your explanation, state the role of DNA polymerase and explain why the replication process is considered semi-conservative.
3. The base sequence of the template strand of DNA is CTACGCTAGGCGATTGAACT. What is the new synthesized complementary strand?
4. A cell containing a single chromosome undergoes two replications. ON THE BACK OF THIS PAPER. Starting with the original DNA molecule as one color and the newly synthesized DNA as another color. Sketch the DNA molecules after one replication followed by a second replication. How does your sketch show the synthesis of DNA as being semi-conservative?
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