In an inducible operon, the genes are
In an inducible operon, the genes are
- [NEET 2013]
- A
usually not expressed unless a signal turns them ”on”.
- B
usuallyexpressed unless a signal turns them “off”.
- C
never expressed
- D
always expresser.
Similar Questions
$A$ : Operator gene is functional when it is not blocked by repressor.
$R$ : Regulator gene produces active protein only which acts on operon system in $E$.coli
$A$ : Operator gene is functional when it is not blocked by repressor.
$R$ : Regulator gene produces active protein only which acts on operon system in $E$.coli
All of the following are part of an operon except
All of the following are part of an operon except
- [NEET 2018]
Select the two correct statements out of the four $(i-iv)$ given below about lac operon.
$i.$ Glucose or galactose may bind with the repressor and inactivate it.
$ii.$ In the absence of lactose, the repressor binds with the operator region.
$iii.$ The z-gene codes for permease.
$iv.$ This was elucidated by Francois Jacob and Jacque Monod.
Select the two correct statements out of the four $(i-iv)$ given below about lac operon.
$i.$ Glucose or galactose may bind with the repressor and inactivate it.
$ii.$ In the absence of lactose, the repressor binds with the operator region.
$iii.$ The z-gene codes for permease.
$iv.$ This was elucidated by Francois Jacob and Jacque Monod.
Which of the following switch off lac operon
Which of the following switch off lac operon
- [AIIMS 2019]
In the lactose operon of Escherichia coli, what is the function of promoter
In the lactose operon of Escherichia coli, what is the function of promoter