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Key points: 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.
Los mecanismos básicos de la replicación del ADN son similares entre los organismos. En este artículo, nos centraremos en cómo ocurre la replicación del ADN en la bacteria E. coli, pero los mecanismos de replicación son similares en los seres humanos y otros eucariontes.
In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the most essential part of biological inheritance .
When a cell divides, it is important that each daughter cell receives an identical copy of the DNA. This is accomplished by the process of DNA replication. The replication of DNA occurs during the synthesis phase, or S phase, of the cell cycle, before the cell enters mitosis or meiosis.
Scientists have devoted decades of effort to understanding how deoxyribonucleic acid ( DNA) replicates itself. In simple terms, replication involves use of an existing strand of DNA as a template...
DNA Replication Mechanisms. All organisms must duplicate their DNA with extraordinary accuracy before each cell division. In this section, we explore how an elaborate “replication machine” achieves this accuracy, while duplicating DNA at rates as high as 1000 nucleotides per second. Go to: Base-Pairing Underlies DNA Replication and DNA Repair.
DNA replication occurs through the help of several enzymes. These enzymes "unzip" DNA molecules by breaking the hydrogen bonds that hold the two strands together. Each strand then serves as a template for a new complementary strand to be created. Complementary bases attach to one another (A-T and C-G).
