Definitions/Explanation : A promoter & The structural gene
Definitions/Explanation : A promoter & The structural gene
A promoter is a $DNA$ sequence that provides binding site for $RNA$ polymerase. It is located at $5 '$ end of the structural gene.
- The structural gene in a transcription unit is flanked by a promoter and terminator.
Similar Questions
Which enzyme / enzymes are responsible for transformation of lactose to galactos in the E.coli culture medium.
Which enzyme / enzymes are responsible for transformation of lactose to galactos in the E.coli culture medium.
Match List $-I$ with List $-II$ :
List $-I$
List $-II$
$a$ In lac operon $i$ gene codes for
$i$ transacetylase
$b$ In lac operon $z$ gene codes for
$ii$ permease
$c$ In lac operon $y$ gene codes for
$iii$ $\beta$ - galactosidase
$d$ In lac operon $a$ gene codes for
$iv$ Repressor
Choose the correct answer from the options given below :
Match List $-I$ with List $-II$ :
| List $-I$ | List $-II$ |
| $a$ In lac operon $i$ gene codes for | $i$ transacetylase |
| $b$ In lac operon $z$ gene codes for | $ii$ permease |
| $c$ In lac operon $y$ gene codes for | $iii$ $\beta$ - galactosidase |
| $d$ In lac operon $a$ gene codes for | $iv$ Repressor |
Choose the correct answer from the options given below :
- [NEET 2022]
In lac operon model; repressor protein binds to which site
In lac operon, $z$ gene codes for:
In lac operon, $z$ gene codes for:
- [NEET 2022]
In the medium where $E$. coli was growing, lactose was added, which induced the lac operon. Then, why does lac operon shut down some time after addition of lactose in the medium?
In the medium where $E$. coli was growing, lactose was added, which induced the lac operon. Then, why does lac operon shut down some time after addition of lactose in the medium?