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In molecular biology, [1] [2] [3] DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. [4] . DNA replication occurs in all living organisms acting as the most essential part of biological inheritance.
The basic mechanisms of DNA replication are similar across organisms. In this article, we'll focus on DNA replication as it takes place in the bacterium E. coli, but the mechanisms of replication are similar in humans and other eukaryotes.
The replication of DNA occurs during the synthesis phase, or S phase, of the cell cycle, before the cell enters mitosis or meiosis. The elucidation of the structure of the double helix provided a hint as to how DNA is copied. Recall that adenine nucleotides pair with thymine nucleotides, and cytosine with guanine.
Jun 1, 2020 · DNA replication is a process that occurs during cellular division where two identical molecules of DNA are created from a single molecule of DNA. As a semiconservative process, a single molecule containing two strands of DNA in double helix formation is separated, where each strand serves as a template for the new DNA molecules.
Nov 2, 2023 · Learn how DNA replication produces two identical copies of DNA from one original molecule. Explore the enzymes, proteins, and steps involved in the process, as well as its applications and similarities and differences in prokaryotic and eukaryotic cells.
May 2, 2024 · Learn how a cell makes an identical copy of its DNA, the genetic material that defines every cell. Explore the structure, function, and enzymes of DNA replication, and the challenges of replicating the ends of chromosomes.
4 days ago · DNA replication is the process by which the genome’s DNA is copied in cells. Before a cell divides, it must first copy (or replicate) its entire genome so that each resulting daughter cell ends up with its own complete genome.
