« previous next »

Author Question: There is a mutation in the repressor that results in a molecule known as a super (Read 1268 times)

aero

  • Hero Member
  • *****
  • Posts: 512
on: Jun 29, 2013
There is a mutation in the repressor that results in a molecule known as a super-repressor because it represses the lac operon permanently. Which of these would characterize such a mutant?
A) It cannot bind to the operator.
B) It cannot make a functional repressor.
C) It cannot bind to the inducer.
D) It makes molecules that bind to one another.
E) It makes a repressor that binds CAP.


Hawke

  • Hero Member
  • *****
  • Posts: 679
Reply #1 on: Jul 1, 2013
I'd go with C. It makes sense.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

aero

  • Hero Member
  • *****
  • Posts: 512
Reply #2 on: Jul 23, 2013
Just got my test back, you're right!


« previous next »
 

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

. Collagen (Mr 300,000) is a rod-shaped molecule, about 3,000 Å . Collagen (Mr 300,000) is a rod-shaped molecule, about 3,000 Å
The traits Mendel used in his experiments, and the results of the F1 and F2 generation crosses. The traits Mendel used in his experiments, and the results of the F1 and F2 generation crosses.
Frameshift mutation Frameshift mutation
Schematic representation of MHC class I molecule, consisting of 3 α domains and 1 β2-microglobulin ... Schematic representation of MHC class I molecule, consisting of 3 α domains and 1 β2-microglobulin ...
Human mtDNA molecule, showing the locations of HVS I and II regions relative to other mtDNA genes Human mtDNA molecule, showing the locations of HVS I and II regions relative to other mtDNA genes
Video: New DNA Strand Replication

For a complete list of videos, visit our video library