| replica | A specimen for electron microscopic examination obtained by coating a crystalline array or other virus material with carbon; the mold (the replica) obtained after the viral material has been dissolved provides details of structure and arrangement. Origin: It., fr. L.L. Re-plico, to fold back (05 Mar 2000) |
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| replica methods | <technique> Methods in the preparation of specimens for transmission electron microscopy. The specimen (for example: a piece of freeze fractured tissue) is shadowed with metal and coated with carbon and then the tissue is digested away. The replica is then picked up on a grid and it is the replica that is examined in the microscope. (18 Nov 1997) |
| replica plate | A technique in which the pattern of bacterial colonies on a culture plate is copied using sterile filter paper, and then the paper is pressed against a second sterile plate. The new plate is infected with cells in the same relative positions as the colonies in the original plate. Usually the new plate is tested quite destructively for some property. The ones with the best result are identified, and the corresponding group of organisms on the original plate can be identified because they are in the equivalent place. (14 Nov 1997) |
| replica plating | <technique> Technique for testing the genetic characteristics of bacterial colonies. A dilute suspension of bacteria is first spread, in a petri dish, on agar containing a medium expected to support the growth of all bacteria, the master plate. Each bacterial cell in the suspension is expected to give rise to a colony. A sterile velvet pad, the same size as the petri dish, is then pressed onto it, picking up a sample of each colony. The bacteria can then be stamped onto new sterile petri dishes, plates, in the identical arrangement. The media in the new plates can be made up to lack specific nutritional requirements or to contain antibiotics. Thus colonies can be identified that cannot grow without specific nutrients or that are antibiotic resistant and cells with mutations in particular genes can be isolated. (18 Nov 1997) |
| replica techniques | Methods of preparing tissue specimens for visualization using an electron microscope, usually a scanning electron microscope. The methods involve the creation of exact copies of the specimens by making a mold or cast (i.e., replica) of the specimen. (12 Dec 1998) |
| replicase | <enzyme> Generic (and rather unhelpful) term for an enzyme that duplicates a polynucleotide sequence (either RNA or DNA). The term is more usefully restricted to the enzyme involved in the replication of certain viral RNA molecules. (18 Nov 1997) |
| replicate | 1. One of several identical processes or observations. 2. To repeat; to produce an exact copy. (05 Mar 2000) |
| replicated | Folded over or backward; folded back upon itself; as, a replicate leaf or petal; a replicate margin of a shell. Origin: L. Replicatus, p. P. Of replicare. See Reply. Source: Websters Dictionary (01 Mar 1998) |
| replication | 1. A turning back of a part so as to form a duplication. 2. <molecular biology> The process of duplicating or reproducing, as the replication of an exact copy of a polynucleotide strand of DNA or RNA. Origin: L. Replicatio = a fold backwards (14 May 1997) |
| 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) |
| 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) |
| replicative form | An intermediate stage in the replication of either DNA or RNA viral genomes that is usually double stranded, the altered, double-stranded form to which single-stranded coliphage DNA is converted after infection of a susceptible bacterium, formation of the complementary ("minus") strand being mediated by enzymes that were present in the bacterium before entrance of the viral ("plus") strand. (05 Mar 2000) |
| replicative intermediate | <molecular biology, virology> Intermediate stage in the replication of a RNA virus, a copy of the original RNA strand or of a single strand copy of the first replicative intermediate. Essentially an amplification strategy. (18 Nov 1997) |
Synonyms : Asexual Reproduction, Asexual Reproductions, Reproductions, Asexual
Synonyms : Physiology, Reproductive and Urinary
Synonyms : Delayed Childbearing, Voluntary Childlessness, Behavior, Reproductive, Childbearing, Delayed, Childlessness, Voluntary
Synonyms : Agents, Reproductive Control, Control Agents, Reproductive
Synonyms : Health Service, Reproductive, Health Services, Reproductive, Reproductive Health Service, Service, Reproductive Health, Services, Reproductive Health
| replicate |
retroflex: bend or turn backward reproduce or make an exact copy of; "replicate the cell"; "copy the genetic information" duplicate: make or do or perform again; "He could never replicate his brilliant performance of the magic trick"
Ãâó: wordnet.princeton.edu/perl/webwn
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| repress |
put down by force or intimidation; "The government quashes any attempt of an uprising"; "China keeps down her dissidents very efficiently"; "The rich landowners subjugated the peasants working the land" smother: conceal or hide; "smother a yawn"; "muffle one's anger"; "strangle a yawn" suppress: put out of one's consciousness
Ãâó: wordnet.princeton.edu/perl/webwn
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| repressed |
pent-up: characterized by or showing the suppression of impulses or emotions; "her severe upbringing had left her inhibited"; "a very inhibited young man, anxious and ill at ease"; "their reactions were partly the product of pent-up emotions"; "repressed rage turned his face scarlet"
Ãâó: wordnet.princeton.edu/perl/webwn
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| repressive |
inhibitory: restrictive of action; "a repressive regime"; "an overly strict and inhibiting discipline"
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| repressor gene |
gene that prevents a nonallele from being transcribed
Ãâó: wordnet.princeton.edu/perl/webwn
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| rep | subject to repayment |
|---|---|
| rep | the act of returning money received previously |
| rep | payment of a debt or obligation |
| rep | the amount of money paid out per unit time |
| rep | the act of abrogating |
| rep | annul by recalling or rescinding |
| rep | an event that repeats |
| rep | happen or occur again |
| rep | to say again or imitate |
| rep | to say, state, or perform again |
| rep | repeat an earlier theme of a musical composition |
| rep | make or do or perform again |
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