https://www.khanacademy.org/science/ap-biology/gene-expression-and-regulation/replication/v/semi-conservative-replication 2025-07-21T19:27:31.703149266Z Semi-conservative replication DNA replication has three possible methods: conservative, dispersive, and semi-conservative. Here, we focus on the Meselson-Stahl experiment, which proved DNA replication is semi-conservative. In this process, each new DNA pair consists of one old strand and one new strand, ensuring accurate genetic information transfer. Efrat Bruck video https://cdn.kastatic.org/googleusercontent/dZCvnvHg5mTDZqxBZSxDyl-FSuSZ9wO6T6HcK-SL1eRhapMjBD9J_bAzBZc4-JsvRHMmhv9afXn-oIulASN-OjlF Semi-conservative replication DNA replication has three possible methods: conservative, dispersive, and semi-conservative. Here, we focus on the Meselson-Stahl experiment, which proved DNA replication is semi-conservative. In this process, each new DNA pair consists of one old strand and one new strand, ensuring accurate genetic information transfer. https://cdn.kastatic.org/ka-youtube-converted/jaJ3NlqK5dA.mp4/jaJ3NlqK5dA.mp4 132 Models of DNA replication and experimental proof https://www.khanacademy.org/science/biology/dna-as-the-genetic-material/dna-replication/a/mode-of-dna-replication-meselson-stahl-experiment 2023-09-14T11:07:34.466749579Z Mode of DNA replication: Meselson-Stahl experiment A key historical experiment that demonstrated the semi-conservative mechanism of DNA replication. article