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.
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Amplify ETF invests in stocks of companies operating in the online retail sector, including traditional online retail, online travel and online marketplace with market capitalizations of at least USD 300m.
The job candidate assessment tools Amplify is using from Rise Performance Group are designed to evaluate how well a candidate fits specific jobs in an organization based on thinking style, behavioral traits, and occupational interests.
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Amplify is dedicated to reimagining K-12 education by creating digital products and services that empower students, teachers and parents in new ways.
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Amplify said it tapped a USD 25m credit line to fund the acquisition.
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With the NIA redevelopment due for completion in winter 2014, this will, as the amplify slogan states, "take hospitality to the next level".
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This study provided a model to amplify SFG rickettsial DNA from sera of patients, and it will be helpful in surveillance of these diseases.
Unlike Dow's more flexible Prevail ABS/TPUs, rigid Amplify alloys utilize Dow's Isoplast rigid TPU.
Still, the work may spur researchers to pursue making lasers of deeply etched, or porous, silicon, which has been shown to emit light in response to electric signals but not to amplify light, he says.