Question

Select the two correct statements out of the four statements(a-d)given below wrtlac operon (a)Glucose or galactose may bind with the repressor and inactivate it (b)In the absence of lactose the repressor binds with the operator region (c)The z-gene codes for permease (d)This was elucidated by Francois Jacob and Jacque Monod The correct statement are (1)(a)and(b) (2)(b)and(c) (3)(a)and(c) (4)(b)and(d)

Answer 1

Answer:4

Explanation: b and d both correct as lav repressor bind to operator in absence of lactose

While d it's was discovered by Jacob and monad.

A statement wrong as galactose does not inhibit operon but glucose do and statement c also wrong due to gene z encode beta galactosidase

Hope it's clear ..thanks