restriction
61Restriction digest — A restriction digest is a procedure used in molecular biology to prepare DNA for analysis or other processing. It is sometimes termed DNA fragmentation (this term is used for other procedures as well). Hartl and Jones describe it this way: This… …
62Restriction fragment — A restriction fragment is a DNA fragment resulting from cutting of a DNA strand by a restriction enzyme (restriction endonucleases), a process called restriction. Each restriction enzyme is highly specific, recognising a particular short DNA… …
63Restriction fragment length polymorphism — A Restriction fragment length polymorphism (or RFLP, often pronounced as rif lip ) is a variation in the DNA sequence of a genome that can be detected by breaking the DNA into pieces with restriction enzymes and analyzing the size of the… …
64Restriction mentale — La doctrine de la restriction mentale est une branche spéciale de la casuistique qui s est développée à la fin du Moyen Âge et à la Renaissance ; on l associe le plus souvent aux Jésuites. Sommaire 1 Utilisation séculière 2 La mentalis… …
65restriction endonuclease — noun any of the enzymes that cut nucleic acid at specific restriction sites and produce restriction fragments; obtained from bacteria (where they cripple viral invaders); used in recombinant DNA technology • Syn: ↑restriction nuclease,… …
66Restriction of Hazardous Substances Directive — European Union directive: Directive 2002/95/EC Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment Made by Council Parliament …
67Restriction (biologie) — Pour les articles homonymes, voir Restriction. La résistance de certaines bactéries face à l agression de bactériophages a été appelée restriction en virologie. C est la restriction à la règle de sensibilité des bactéries aux phages. Cette… …
68Restriction endonuclease — An enzyme from bacteria that can recognize specific base sequences in DNA and cut (restrict) the DNA at that site (the restriction site). Also called a restriction enzyme. * * * restriction endonuclease n RESTRICTION ENZYME * * * see restriction… …
69Restriction (mathematics) — In mathematics, the notion of restriction finds a general definition in the context of sheaves.Often, the following definition will be sufficient:If f: E > F is a (partial) function from E to F , and A is a subset of E , then the restriction of f …
70Restriction point — The restriction point is a G1 phase checkpoint in the cell cycle of animal cells. Cells that progress through this point are committed to enter S phase, where DNA synthesis and replication will occur. If a cell is not ready, or external… …
