| rep | let it be repeated [Lat. repetatur]; replication; roentgen equivalent-physical |
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| REPA | replication protein A |
| RP | radial pulse; radiopharmaceutical; rapid processing [of film]; Raynaud phenomenon; reactive protein;... |
| RPA | radial photon apsorptiometry; replication protein A; resultant physiologic acceleration; reverse pas... |
| replication, DNA | A wondrous complex process whereby the ( parent ) strands of DNA in the double helix are separated and each one is copied to produce a new ( daughter ) strand. This process is said to be semi-conservative since one of each parent strand is conserrved and remains intact after replication has taken place. (12 Dec 1998) |
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| replication fork | A Y-shaped region in a chromosome that serves as the growing site for DNAreplication. (09 Oct 1997) |
| replication origin | A unique DNA sequence of a replicon at which DNA replication is initiated and proceeds bidirectionally or unidirectionally. It contains the sites where the first separation of the complementary strands occurs, a primer RNA is synthesised, and the switch from primer RNA to DNA synthesis takes place. (rieger et al., glossary of genetics: classical and molecular, 5th ed) (12 Dec 1998) |
| replication site | The in vivo site on DNA of DNA replication. (05 Mar 2000) |
| conservative replication | <molecular biology> Replication of DNA in such a way that the original parent strands of the DNA molecule end up back with each other. The entire preexisting double-stranded DNA molecule is conserved during each round of replication. Compare: semiconservative replication. (09 Oct 1997) |
| saemiconservative replication | Replication in which a double-stranded DNA (dsDNA) produces two daughter dsDNA, each of which contains one of the original chains and one newly synthesised strand. (05 Mar 2000) |
| saltatory replication | The sudden amplification of a DNA sequence to generate many copies in a tandem arrangement. Possible mechanism for the origin of satellite DNA. (18 Nov 1997) |
| semiconservative replication | <molecular biology> The system of replication of DNA found in all cells in which each daughter cell receives one old strand of DNA and one strand newly synthesised at the preceding S phase. The existence of semiconservative replication was demonstrated by the Meselson Stahl experiment and implies the two or multi strandedness of DNA. (18 Nov 1997) |
| DNA replication | <molecular biology> The process whereby a copy of a DNA molecule is made and thus the genetic information it contains is duplicated. The parental double stranded DNA molecule is replicated semi conservatively, i.e. Each copy contains one of the original strands paired with a newly synthesised strand that is complementary in terms of at and GC base pairing. Though in this sense conceptually simple, mechanistically a complex process involving a number of enzymes. (18 Nov 1997) |
| origin of replication | <molecular biology> Regions of DNA that are necessary for its replication to begin, such as pBR322 ori, required for plasmid replication. (18 Nov 1997) |
| unidirectional replication | Replication in which there is movement by a single replication fork. (05 Mar 2000) |