the ability to reproduce.
Answer:
Option D, Essentially none
Explanation:
The essential condition for lac operon to express its subsequent proteins i.e laz A, lacZ and lacY are as follows –
a) Absence of glucose
b) Presence of Lactose.
In fact absence of glucose is must. In case when lactose is absent and glucose is present then the lac z sub-protein whose product is β-galactosidase is not expressed. In fact in lac z breaks down lactose into glucose and galactose in absence of glucose.
Hence, option D is correct
We do science because if we didn't we would not know a lot of the things we do know now.
The correct answer is: a. the agar and air in the petri dish are providing all of the resources needed by the bacteria.
There are four phases of bacterial growth:
1. Lag phase-bacteria prepare for reproduction
2. Log phase- cell doubling
3. Stationary phase- due to a growth-limiting factor
4. Death phase.
