Question

what is the mechanism of dna replication??​

Answer 1

DNA replication is semiconservative. Each strand in the double helix acts as a template for synthesis of a new, complementary strand.

New DNA is made by enzymes called DNA polymerases, which require a template and a primer (starter) and synthesize DNA in the 5' to 3' direction.

During DNA replication, one new strand (the leading strand) is made as a continuous piece. The other (the lagging strand) is made in small pieces.

DNA replication requires other enzymes in addition to DNA polymerase, including DNA primase, DNA helicase, DNA ligase, and topoisomerase.

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Answer 2

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Mechanism of DNA replication →

✏️Watson and Crick first reasoned that complementary base pairing provides the basis of fidelity in DNA replication; that is, that each base in the template strand dictates the complementary base in the new strand.

✏️However, we now know that the process of DNA replication is very complex and requires the participation of many different components.

✏️ Let’s examine each of these components and see how they fit together to produce our current picture of DNA synthesis in E. coli, the best-studied cellular replication system. In the preceding section, we introduced the concept of the replication fork

✏️DNA replication is semiconservative, meaning that each strand in the DNA double helix acts as a template for the synthesis of a new, complementary strand.

✏️ This process takes us from one starting molecule to two "daughter" molecules, with each newly formed double helix containing one new and one old strand.

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