what is an inducible operon

Inducible Operon - This is a type of operon which is switched on when a chemical, called inducer, is present. The inducer is almost always a substrate. This operon has following componen..

This is a type of operon which is switched on when a chemical, called inducer, is present. The inducer is almost always a substrate. This operon has following component..

In 1961, two French microbiologists, Francois Jacob and Jacques Monod proposed a mechanism, called Operon Hypothesis , for the regulation of gene action in E. coli. It got them the Nobel Prize in 1965. fig. 23.1 - Francois Jacob and Jacques Monod with their Colleague They found that..

Another type of operon system is the repressible operon which is regulated by a chemical substance called co-repressor. It is almost always the end product of a metabolic reaction. The operon is switched off when the co-repressor, is present. Tryptophan operon..

It was proposed by Daniel Koshland in 1959. According to this hypothesis, there is an intermediate condition called transition state between the substrate and the products. It is highly unstable. When the substrate molecules bind to the enzyme molecule, a change is brought about in the active site..

These movements are a result of the response to an external stimuli and the direction of movement is controlled by the direction of the stimulu..

The direction of induced current can be determined by using Fleming's Right Hand Rule. Stretch the forefinger, the middle finger and the thumb of the right hand, such that they are mutually perpendicular to each other. If forefinger indicates the direction of the magnetic field, the ..

The attractive forces between the instantaneous dipole and instantaneous induced dipoles are called Van der Waal's forces...

In eukaryotes, the genes that code for the enzymes needed to catalyse the various steps of a particular metabolic pathway may not be adjacent or even be in different chromosomes. However, these genes are regulated by operon model as in bacteria. Both the inducible and the ..

Summary - Protein synthesis is a controlled process in which a given protein is synthesised in the cell only when it is necessary. When a particular protein is to be synthesised the specific gene has to express and initiate transcription. The mechanism that stimulates the expression of certain gene..