DNA Polymerase enzyme syntheses labeled educational vector illustration. Image Credit: VectorMine / Shutterstock. Every time a cell divides, DNA polymerase is required to help duplicate the cell ...

Z-DNA has a left-handed double helix structure. It is said to be found during the start of a gene. When does DNA replication occur? DNA replication occurs in the S phase of the cell cycle.

They used labeled bases to stop the replication of the template and determine which base was at each position (Proc. Natl. Acad. Sci. U.S.A., DOI: 10.1073/pnas.74.12.5463).

Revise structure and replication of DNA for your Higher Human Biology exam with Bitesize Scotland interactive practice quizzes covering feedback and common errors.

Rosalind Franklin, James Watson and Francis Crick discovered the structure of DNA—that molecular blueprint for life—over 70 years ago. Today, scientists are still uncovering new ways to read it.

In the DNA fiber assay used in this study, cells labeled with IdU (green) and CldU (red) nucleotide analogs were sorted into substages of S phase before being subjected to the DNA fiber assay.

MSK researchers are shedding new light on G-quadruplexes, a type of secondary DNA structure that can cause DNA replication to stall. The structures are a potential therapeutic target in cancer. Image ...

Researchers at IRB Barcelona publish the structure of the RepB protein bound to DNA, a key protein in triggering the replication of plasmid pMV158, in the journal Nucleic Acids Research.