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17: DNA Replication

Last updated

Jul 23, 2024
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- 16.6: Chapter Summary
- 17.1: Introduction

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17.1: Introduction
17.2: Basics of DNA Replication
The elucidation of the structure of the double helix provided a hint as to how DNA divides and makes copies of itself. This model suggests that the two strands of the double helix separate during replication, and each strand serves as a template from which the new complementary strand is copied. What was not clear was how the replication took place. There were three models suggested: conservative, semi-conservative, and dispersive.
17.3: DNA Replication in Prokaryotes
17.4: DNA Replication in Eukaryotes
17.5: DNA Repair
DNA replication is a highly accurate process, but mistakes can occasionally occur, such as a DNA polymerase inserting a wrong base. Uncorrected mistakes may sometimes lead to serious consequences, such as cancer. Repair mechanisms correct the mistakes. In rare cases, mistakes are not corrected, leading to mutations; in other cases, repair enzymes are themselves mutated or defective.
17.6: Key Terms
17.7: Chapter Summary

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