Describes the biological role of the lac operon

Assignment Help Biology

Reference no: EM13119301

Which of the following best describes the biological role of the lac operon?

a. It ensures that bacterial cells produce lactose only when no other food sources are available.
b. It prevents other sugars from being metabolized until all available lactose has been used.
c. It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment.
d. It ensures that a cell produces enzymes involved in lactose metabolism in a constitutive manner.

Reference no: EM13119301

Questions Cloud

Understand an event : arration can help your readers understand an event because a narrative essay , An essay exploring the question, "What would be the results of changing the legal driving age to 18?" would be a/an

What is the probability of rolling a total of 7 in two rolls : What is the probability of rolling a total of 7 in two rolls of a standard dice if you get an even number on the first roll?

Find out the magnitude of the motional emf : A constant magnetic field of magnitude 0.45 T is directed along the +y axis. The length of each rod is L = 1.3 m, and the speeds are the same, vA = vB = vC = 2.7 m/s. For each rod, find out the magnitude of the motional emf, and indicate which end..

Illustrate what is johns current location : what is the distance between town and john's current location? Illustrate what is john's current location?

Describes the biological role of the lac operon : Which of the following best describes the biological role of the lac operon?

Describe important information about queuing theory : Describe Important information about Queuing Theory. Compute the operating characteristics for the drive-through window queuing system.

Discuss some of the problems associated with hyperinflation : Discuss some of the problems associated with hyperinflation--use the first article to provide examples of the problems with inflation

Identify distribution of random variable-standard deviation : We are intersted in the number of students who prefer brand C cola. identify the distribution of the random variable and the mean,standard deviation.

How much work is done on the system : The densities of ice and water at 0 C are 0.9168 and 0.9998 respectively. if delta h for the fusion process at atmospheric pressure is 0.625 what is delta u.

User Account

All Pages