DNA Polymerase: Structure, Types, and Functions
DNA polymerase is the enzyme that builds new DNA. Learn its hand-shaped structure, the types in prokaryotes and eukaryotes, how it proofreads, and why it matters in PCR.
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DNA Replication
Articles related to DNA and Replication of DNA.
Topoisomerase: Structure, Types, and Functions
Compare topoisomerase I and II mechanisms, strand breaks, ATP use, roles in DNA replication, and important antibacterial and anticancer drug targets.
Enzymes Involved in DNA Replication: Roles at the Fork, with Diagram
The enzymes of DNA replication (helicase, gyrase, primase, DNA polymerase I and III, ligase) explained by their job at the replication fork, with a labeled diagram and the antibiot...
Structure and Components of DNA
The structure of DNA has three levels: the nucleotide sequence, the double helix, and its 3D forms. Learn the components, base pairing, and the A, B, and Z forms, with clear diagra...
DNA Transcription: Steps and Mechanism
Transcription is how a cell copies a gene from DNA into RNA. Learn the steps (initiation, elongation, termination), the template versus coding strand, the Pribnow box, and how tran...
DNA Replication: Steps, Mechanism, and Diagram (Prokaryotic)
DNA replication copies one DNA molecule into two before a cell divides. Learn the semi-conservative mechanism, the step-by-step process at the replication fork, and how leading and...