amplification

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amplification

 [am″plĭ-fĭ-ka´shun]
the process of making larger, such as the increase of an auditory or visual stimulus, as a means of improving its perception.
DNA amplification artificial increase in the number of copies of a particular DNA fragment into millions of copies through replication of the segment into which it has been cloned, a type of nucleic acid amplification.
gene amplification a process by which the number of copies of a gene is increased in certain cells because extra copies of DNA are made in response to certain signals of cell development or of stress from the environment. In humans this process is seen most often in malignant cells.
nucleic acid amplification amplification of a specific nucleic acid sequence, such as to test for presence of a given virus or bacteria in a sample. Types include DNA amplification, ligase chain reaction, and polymerase chain reaction.

am·pli·fi·ca·tion

(am'pli-fi-kā'shŭn),
The process of making larger, as in increasing an acoustic or visual stimulus to enhance its perception.
[L. amplificatio, an enlarging]

amplification

/am·pli·fi·ca·tion/ (33000) (am″plĭ-fĭ-ka´shun) the process of making larger, such as the increase of an auditory stimulus, as a means of improving its perception.
gene amplification  the process by which the number of copies of a gene is increased in certain cells; in humans it is most often seen in malignant cells.

amplification

(ăm′plə-fĭ-kā′shən)
n.
1. The act or result of amplifying, enlarging, or extending.
2. Physics
a. The process of increasing the magnitude of a variable quantity, especially the magnitude of voltage, power, or current, without altering any other quality.
b. The result of such a process.
3. Genetics The process by which extra copies of a gene or a DNA sequence are formed.

amplification

[am′plifikā′shən]
Etymology: L, amplificare, to make wider
1 (genetic) a process whereby certain targeted sequences of DNA are replicated by the polymerase chain reaction (PCR) in order to produce multiple copies of a single or limited number of genes. Often this refers to increasing the proportion of plasmid DNA relative to the amount of bacterial DNA.
2 the replication in bulk of an entire DNA library. See also polymerase chain reaction. amplify, v.

amplification

An in vivo (as in the fragile X syndrome) or in vitro (as in cloning or PCR) increase in the number of copies of a specific gene or DNA sequence of interest.

amplification

Molecular biology An in vivo–as in the fragile X syndrome or in vitro–as in cloning or PCR ↑ in the number of copies of a specific gene or DNA sequence of interest. See Cloning, DNA amplification, Exon amplification, Extreme amplification, Gene amplification, Linked linear amplification, PCR, PCR amplification of specific alleles, Solid phase amplification.

am·pli·fi·ca·tion

(am'pli-fi-kā'shŭn)
1. The process of making larger, as in increasing an auditory or visual stimulus to enhance its perception.
2. molecular biology Process of increasing the number of nucleic acid copies in a sample to millions within a short period.
[L. amplificatio, an enlarging]

amplification

The production of extra copies of a DNA sequence. These may be within the chromosomal sequence or outside it.

Amplification

A process by which something is made larger. In clotting, only a very few chemicals are released by the initial injury; they result in a cascade of chemical reactions which produces increasingly larger quantities of different chemicals, resulting in an appropriately-sized, strong fibrin clot.
Mentioned in: Hemophilia

amplification

1. the process of making larger, as the increase of an auditory or visual stimulus, as a means of improving its perception.
2. said of a virus means multiplication; replication.
3. in polymerase chain reaction, the synthesis of multiple copies of a particular nucleic acid template sequence.
References in periodicals archive ?
Driving the industry's support for Amplified Music Services' technologies is an optimized, simple-to-use, one-click design that delivers incredibly reliable recognition accuracy.
Amplified Music Services delivers its accuracy through a distinctive combination of multi-level digital fingerprint and acoustic analyses.
Simultaneous with the launch, industry veteran Charly Lippoth has joined Amplified Music Services as the exclusive sales representative for the company in Japan and APAC.
BLAST searches against the determined sequences of segments amplified from the 17-kDa antigen, citrate synthase, OmpB, OmpA, and Sca4 genes of the unknown agent showed 100% identity with those sequences deposited within GenBank for R.
Measurements, including some made on the highway itself, show that the mud sediments amplified frequencies of around 2 cycles per second, which are close to the highway's natural frequency.
Solutions like amplified telephones and other communication devices are available to employers," continued Trads.
97% are aware of hearing aids, while 73% are aware of amplified telephones.
Standard amplified telephones typically boost the volume of all sounds during a conversation, making it difficult for someone with a hearing loss to decipher between high and low frequencies.
Standard amplified phones may even compound this problem by amplifying static, sudden sounds and other distracting noise.
Clarity is the first telephone supplier to incorporate this patent pending technology into its products and is set to revolutionize the amplified telephone industry.
The company's portfolio, which includes patents applicable to single molecule arrays, amplified clusters of single molecules, and other multi-molecule array formats including beads, provides broad coverage over a range of techniques applicable to the development of next-generation genetic analysis systems using Sequencing-by-Synthesis.
To further validate the specific amplification results, another method was used where all the amplified products were analysed by Gel Electrophoresis and documented by the BIO RAD Gel Doc EQ(TM) system.