Sail E0 Webinar
Question
An E. coli cell of volume 10-12 cm3 contains 60 molecules of lac-repressor. The repressor has a binding
affinity (Kd) of 10-8 M and 10-9 M with and without lactose respectively, in the medium.Therefore the lac-operon is
Options:
A .  repressed and can only be induced with lactose.
B .  repressed and cannot be induced with lactose.
C .  not repressed.
D .  expressed only when glucose and lactose are present.
Answer: Option B


-NA-



Was this answer helpful ?
Next Question

Submit Solution

Your email address will not be published. Required fields are marked *

Latest Videos

Latest Test Papers