Dna Replication

DNA replicates the same thing as DNA. DNA is a molecule in which repeating chains of the same 5-carbon sugar (polymer) are connected from the beginning to the end. It consists of four cyclic organic bases (nucleotides) which are adenine (A), guanine (G), cytosine (C) and thymine (T). It has a double helical form and contains the sugar moiety deoxyribose. The process of DNA replication The process of DNA replication is very simple. First, DNA molecules are "thawed". In other words, it breaks up into two DNA strands at one end of the DNA molecule.

Replication machinery consists of factors involved in DNA replication and appear on template ssDNA. Replicating devices including original exercisers are replicases, DNA polymerases, DNA helicases, DNA clamps and DNA topoisomerases, and replication proteins such as single stranded DNA binding protein (SSB). These components are coordinated on the replication machine. In most bacteria, all the factors involved in DNA replication are in the replication fork, and the complex remains on the fork during DNA replication. These replicators are called replicas or DNA replicase systems. These terms are generic names of proteins on replication forks. In eukaryotic cells and some bacterial cells, replication is not formed

Different DNA polymerases play different roles in DNA replication. In E. coli, DNA Pol III is a polymerase responsible for DNA replication. It is assembled into replication complexes on replication branches, which are extremely permanent and remain intact throughout the replication cycle. In contrast, DNA Pol I is an enzyme responsible for replacing RNA primers with DNA. In addition to polymerase activity, DNA Pol I also has 5 'to 3' exonuclease activity and extends behind the DNA strand called nick translation, so its exonuclease activity is used to degrade RNA primers . Pol I does not have a process over Pol III since its main function in DNA replication is to create many short DNA regions rather than some very long regions.