Digestion and AbsorptionHard
Question
Find out the correct statements from the followings :-
(a) In lac-operon, polycistronic structural gene is regulated by a common promoter and regulatory gene
(b) In lac-operon one regulatory gene (the i gene) is present, here the term i refers to the inducer
(c) Lactose is the substrate for the enzyme beta-galactosidase and it regulates switching on and off of the operon.
(d) The y-gene of lac-operon codes for transacetylase
(e) The z-gene codes for beta-galactosidase
(a) In lac-operon, polycistronic structural gene is regulated by a common promoter and regulatory gene
(b) In lac-operon one regulatory gene (the i gene) is present, here the term i refers to the inducer
(c) Lactose is the substrate for the enzyme beta-galactosidase and it regulates switching on and off of the operon.
(d) The y-gene of lac-operon codes for transacetylase
(e) The z-gene codes for beta-galactosidase
Options
A.a and c
B.a, b and e
C.a, c and e
D.a, c, d and e