heat-shock response

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The transcriptional activity that is induced at a small number of chromosomal loci following exposure of cells to a brief period of elevated temperature. At the same time, other loci that were active prior to the heat shock are switched off. This phenomenon appears to be universal, since it has been observed in Drosophila, Tetrahymena, sea urchin embryos, soybeans, chick fibroblasts, etc. See ubiquitin.

Subjects: Genetics and Genomics.

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