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Hace 6 días · Polymerase chain reaction (abbreviated PCR) is a laboratory technique for rapidly producing (amplifying) millions to billions of copies of a specific segment of DNA, which can then be studied in greater detail.
Hace 3 días · A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. [1] . When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated.
Hace 5 días · In a nuclear reactor the chain reaction is maintained at a controlled, nearly constant level. Nuclear reactors are so designed that they cannot explode like atomic bombs. Most of the energy of fission—approximately 85 percent of it—is released within a very short time after the process has occurred.
28 de jun. de 2024 · Combustion, a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame. Combustion is one of the most important of chemical reactions and may be considered a culminating step in the oxidation of certain kinds of substances.
Hace 2 días · The proton–proton chain reaction, branch I, dominates in stars the size of the Sun or smaller. The CNO cycle dominates in stars heavier than the Sun. An important fusion process is the stellar nucleosynthesis that powers stars, including the Sun.
28 de jun. de 2024 · The meaning of POLYMERASE CHAIN REACTION is an in vitro technique for rapidly synthesizing large quantities of a given DNA segment that involves separating the DNA into its two complementary strands, using DNA polymerase to synthesize two-stranded DNA from each single strand, and repeating the process —abbreviation PCR.
11 de jul. de 2024 · Reverse transcription polymerase chain reaction (RTPCR) is a technique to detect or quantify RNA. It uses a reverse transcriptase enzyme to convert RNA to DNA, followed by PCR to amplify...
