Jacob–Monod hypothesis
Jacob–Monod hypothesis The theory postulated by the French biologists F. Jacob (1920– ) and J. Monod (1910–76) in 1961 to explain the control of gene expression in bacteria (see operon). Jacob and Monod investigated the expression of the gene that codes for the enzyme β-galactosidase, which breaks down lactose; the operon that regulates lactose metabolism is called the lac operon.
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Regulator Gene , regulatory gene In the operon theory of gene regulation, a gene that is involved in switching on or off the transcription of structural genes. When t… repressor , repressor In the operon theory of gene regulation, a protein produced by a regulatory gene that inhibits the activity of an operator gene, and hence… Operon , Operon
An operon is a genetic regulatory system found in prokaryotes and the bacterial viruses (bacteriophages ) that attack bacteria. It is a cluste… , neuron • , exon •Agamemnon, Memnon •ninon, xenon •noumenon • Trianon • xoanon •organon • Simenon • Maintenon •crampon, kampong, tampon •Nippon • coupon •Akron,… Dna Microarray , DNA microarrays are tools used to analyze and measure the activity of genes. Researchers can use microarrays and other methods to measure changes in… Pseudogenes , Pseudogenes are defective copies of functional genes. These may be partial or complete duplicates derived from polypeptide-encoding genes or RNA gene…
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Jacob–Monod hypothesis