Which model of DNA replication suggests that each new DNA molecule contains one original strand and one newly synthesized strand?
Understand the Problem
The question is asking about the model of DNA replication that describes how a new DNA molecule is formed with one original strand and one newly synthesized strand. It seeks to identify the correct model from the given options.
Answer
Semi-conservative replication.
The final answer is that the semi-conservative model of DNA replication suggests that each new DNA molecule contains one original strand and one newly synthesized strand.
Answer for screen readers
The final answer is that the semi-conservative model of DNA replication suggests that each new DNA molecule contains one original strand and one newly synthesized strand.
More Information
The semi-conservative model of DNA replication was confirmed by the Meselson-Stahl experiment, which demonstrated this process of duplication where each new DNA molecule consists of one old strand and one new strand.
Tips
Confusing the models of DNA replication is common. The semi-conservative model, not the conservative or dispersive models, describes each new DNA having one original and one new strand.
Sources
- DNA Replication Mechanisms - Molecular Biology of the Cell - NCBI - ncbi.nlm.nih.gov
- 5.3A: Basics of DNA Replication - Biology LibreTexts - bio.libretexts.org
- 9.2: DNA Replication - Biology LibreTexts - bio.libretexts.org
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