Year: 2022
Topic: Molecular Basis of Inheritance
Time :
1.
In an E. coli strain the
i
gene gets mutated and its product can not bind the inducer molecule. If the growth medium is provided with lactose, what will be the outcome?
(1). Only z gene will get transcribed
(2). z, y, a genes will be transcribed
(3). Z, y, a genes will not be translated
(4). RNA polymerase will bind the promoter region