primer

(redirected from Primers)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

prim·er

(prī'mĕr),
1. A molecule, which may be a small polymer, that initiates the synthesis of a larger structure. Synonym(s): starter
2. A pheromone that causes a long-term physiologic change.
Farlex Partner Medical Dictionary © Farlex 2012

primer

(prī′mər)
n.
Genetics A segment of DNA or RNA that is complementary to a given DNA sequence and that is needed to initiate replication by DNA polymerase.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

primer

1. A short RNA sequence paired with one DNA strand that provides a free 3’-OH end on which synthesis of a deoxyribonycleotide chain can start.
2. The short nucleotide sequence used to start the POLYMERASE CHAIN REACTION (PCR) process.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

primer

a short OLIGONUCLEOTIDE, which is required for the functioning of various POLYMERASES. In DNA REPLICATION, the primer is a short RNA sequence that anneals to the DNA TEMPLATE and is extended by DNA POLYMERASE. In the POLYMERASE CHAIN REACTION, the primer is a short oligonucleotide that initiates the PCR. In OLIGONUCLEOTIDE-DIRECTED MUTAGENESIS, the synthetic oligonucleotide used to introduce the mutation is a mutagenic primer that initiates DNA synthesis.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
And this time, the Small Rifle primers turned in the higher muzzle velocity.
As to the results with W760 (better groups and less velocity variation with large primers), double-base spherical propellants like W760 contain a significant amount of nitroglycerin.
Modern orthodontic bonding has evolved through different phases.5 The conventional primers consist of bis-phenol A glycidal methacrylate (Bisgma) resins, which are hydrophobic in nature,6 while moisture insensitive primers consists of hydrophilic components, such as hydroxyethyl methacrylate (HEMA) and maleic acid dissolved in acetone,7,8 that works efficiently even in moist conditions.
The combination of blocked-cleavable rhPCR primers, an enhanced Taq polymerase, and a universal reporter system significantly increase specificity and boost signal, enabling the method to very accurately discriminate among extremely similar sequences.
Because of the relatively low striker energy leverguns have, pistol primers improve typical loads because pistol primers require far less striker energy to ignite with good primer-to-primer consistency.
The species-locus-specific primers are able to anneal to host DNA alone in highly contaminated feces of highlighted species.
The sequences of the PCR primers and SNP-typing primers are listed in Table 3.
What appear to be high pressure signs in primers can result from factors in the firearm.
On application, the primers and basecoats setup rapidly (primers are particularly dry and rough) and would be expected to resist cratering even if contamination is present.
I loved it.' Julie Bench, N Yorks Collection Reviving & Anti-Fatigue Illuminating Primers, PS4.99 Beauty ed: 'Anti-fatigue' sounds brilliant: even if I feel tired, I'll settle for just looking better.