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

(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

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
References in periodicals archive ?
The ClearSounds A400 amplified cordless phone and CSC500 amplified corded phone are available at no cost to qualified Florida residents.
The gloriously catchy Alive & Amplified was the number fans had been waiting for, the song's infectious hook and the verve of the performance making it a compelling experience.
DNA was isolated from the oocytes and amplified using polymerase chain reaction (PCR).
(The Internet offers its own kind of democracy, but because it is so jumbled, it not only resists control, it also has yet to reach a predictable audience.) The voices on radio and TV are selected voices that are amplified in ways their opposites are not.
In sand and lubricant, with props and electronically amplified costumes, the dancers draw a perceptual map of cultures through time.
Outputs include millivolt, amplified voltages, and current-loop signals.
One signal is amplified; the other signal is applied directly to a 180 [degrees] delay line.
Jensen has introduced two new versatile, affordably priced, amplified speaker systems for computer use.
The ability to amplify large segments of DNA, in excess of 20,000 base pairs, compared to the targets of 100 to 2,000 base pairs typically being amplified today will change the way gene mapping is done."
Brooklyn, NY, April 18, 2012 --(PR.com)-- DAMN Digital Studio (www.damndigitalstudio.com), an interactive and branding agency based in Dumbo, Brooklyn, New York City's Digital District, has acquired a new client, Amplified Growth, Inc.
To the Editor: An unprecedented outbreak of Cryptococcus gattii genotype amplified fragment length polymorphism (AFLP) 6/VGII on Vancouver Island, British Columbia, Canada, is affecting both human and animal hosts with normal immunity (1-3).
The chapter briefly reviews highly amplified risks about automobile traffic radar and cell phones and about electromagnetic fields from overhead lines.

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