DNA Replication Worksheet
Grade 10 Science worksheet covering the process of DNA replication, including key enzymes, stages, and characteristics.
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DNA Replication Worksheet
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Date:
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Read each question carefully and provide your answer in the space provided. For multiple-choice questions, circle the letter corresponding to the correct answer.
1. Which enzyme is responsible for unwinding the DNA double helix during replication?
DNA Ligase
Helicase
DNA Polymerase
Primase
2. DNA replication is described as semi-conservative because:
Each new DNA molecule contains two new strands.
Each new DNA molecule contains one original strand and one new strand.
DNA replication occurs in a conservative manner.
The original DNA molecule is completely destroyed.
3. The enzyme adds complementary nucleotides to the growing DNA strand.
4. Okazaki fragments are found on the strand during DNA replication.
5. The process of DNA replication occurs in the of eukaryotic cells.
6. DNA replication proceeds in a 5' to 3' direction on both the leading and lagging strands.
True
False
7. DNA ligase is responsible for joining the Okazaki fragments together.
True
False
8. Describe the role of a primer in DNA replication.
9. Explain why DNA replication is essential for cell division.
10. Label the diagram of the DNA replication fork below with the following terms: Leading strand, Lagging strand, DNA Polymerase, Helicase, Primer, Okazaki fragment.
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