...Monod proposed the operon model for the...
...in bacteria. An operon consists of three...
...By itself, an operon is on and...
...transcription of the operon’s genes. Each repressor...
...of a certain operon. Regulatory genes are...
...of the trp operon, when concentrations of...
...and turns the operon off. At low...
...inactive and the operon is transcribed. The...
...transcribed. The trp operon is an example...
...of a repressible operon, one that is...
...contrast, an inducible operon is stimulated when...
...synthesized, and the operon is off. Allosteric...
...inactive, and the operon is on. The...
...on. The lac operon contains a series...
...of lactose, this operon is off as...
...and the lac operon can be transcribed....
...if the lac operon is turned on...
...promotor. The lac operon will be transcribed...
...For the lac operon, the presence /...
...determines if the operon is on or...

...known as the operon model, was described...
...in 1961. The operon model controls tryptophan...
...control constitute an operon. The trp operon...
...operon. The trp operon (trp for tryptophan)...
...By itself, an operon is turned on....
...the genes. The operon can be switched...
...transcription of the operon’s genes. Each repressor...
...of a particular operon. The trp repressor...
...distance from the operon it controls and...
...is the trp operon not switched off...
...of the trp operon, when concentrations of...
...and turns the operon off. At low...
...inactive, and the operon is transcribed. As...
...inducible. The trp operon is an example...
...of a repressible operon, one that is...
...contrast, an inducible operon is stimulated or...
...synthesized, and the operon is off. Allosteric...
...inactive, and the operon is turned on....
...on. The lac operon contains a series...
...of lactose, this operon is off because...
...of the lac operon, which includes two...
...located outside the operon, codes for an...
...off the lac operon by binding to...
...Unlike the trp operon, the lac repressor...
...switching the lac operon off. An inducer...
...and the lac operon can be transcribed....
...on. The lac operon is an example...
...detaches from the operon. The lac operon...
...operon. The lac operon is transcribed but...
...level. The lac operon is under dual...
...not the lac operon’s genes are transcribed....
...transcription if the operon is repressor-free. The...
...is repressor-free. The operon has both an...
...clustered into an operon with a single...
...genes of the operon are transcribed into...