Articles liés à DNA Replication: Heredity, Semiconservative Replication,...

DNA Replication: Heredity, Semiconservative Replication, Proofreading (Biology), Mutation, DNA, Cell (Biology), Origin of Replication, Replication ... Nucleotide, Prokaryotic DNA Replication - Couverture souple

 
9786130235710: DNA Replication: Heredity, Semiconservative Replication, Proofreading (Biology), Mutation, DNA, Cell (Biology), Origin of Replication, Replication ... Nucleotide, Prokaryotic DNA Replication

Synopsis

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. DNA replication, the basis for biological inheritance, is a fundamental process occurring in all living organisms to copy their DNA. This process is "semiconservative" in that each strand of the original double-stranded DNA molecule serves as template for the reproduction of the complementary strand. Hence, following DNA replication, two identical DNa molecules have been produced from a single double-stranded DNA molecule. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNa replication. In a cell, DNA replication begins at specific locations in the genome, called "origins". Unwinding of DNA at the origin, and synthesis of new strands, forms a replication fork. In addition to DNA polymerase, the enzyme that synthesizes the new DNA by adding nucleotides matched to the template strand, a number of other proteins are associated with the fork and assist in the initiation and continuation of DNA synthesis. DNA replication can also be performed in vitro (outside a cell). DNA polymerases, isolated from cells, and artificial DNA primers are used to initiate DNa synthesis at known sequences in a template molecule.

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