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 :
$(a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)$
$(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)$
$(a) - (iv), (b) - (i), (c) - (iii), (d) - (ii)$
$(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)$
Lac operon is
Which enzyme / enzymes are responsible for transformation of lactose to galactos in the E.coli culture medium.
Functioning of structural genes is controlled by
In Operon concept, the regulator gene regulates chemical reactions in the cell by
Definitions/Explanation : Regulatorgene & Promotergene