NEETZoologyMolecular Basis of Inheritance
Select the correct statement for the given figure.
Options
- AThe elucidation of the lac operon was also a result of a close association between a, biochemist Francois Jaco
- BIn lac operon, a polycistronic structural gene is regulated by a common promoter and regulatory genes. Such ar
- CA very low level of expression of lac operon has to be absent in the cell, so lactose can enter the cells.
- DRegulation of lac operon by repressor is referred to as positive regulation.
Correct answer
A. The elucidation of the lac operon was also a result of a close association between a, biochemist Francois Jaco
Step-by-step solution
The elucidation of the lac operon was also a result of a close association between a geneticist, Francois Jacob and a biochemist, Jacque Monod. They were the first to elucidate a transcriptionally regulated system. In lac operon (here lac refers to lactose), a polycistronic structural gene is regulated by a common promoter and regulatory genes. Such arrangement is very common in bacteria and is referred to as operon. To name few such examples, lac operon, trp operon, ara operon, his operon, val operon, etc. Lactose