1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GrogVix [38]
3 years ago
15

A. E. coli is able to use foods other than glucose in the absence of available glucose, because falling levels of glucose cause

an increase of B) activator protein
A) operator
B) promotor
C) structural gene
D) CAMP
Biology
1 answer:
Gnom [1K]3 years ago
3 0

Answer: D) cAMP

Explanation:

In the absence of glucose cell can make use of other sources of carbohydrates such as lactose. In E. Coli and other bacteria utilization of lactose depends on the availability of cAMP. Bacteria accumulate cAMP only when starved. When glucose is exhausted, cAMP is available in plenty.

cAMP is necessary for the gene expression because it binds catabolite repressor protein (CAP) to form CAP-cAMP complex. CAP is a lac repressor the binds to the operator site of the lac operon preventing RNAP From binding to the promoter.

RNA polymerase can bind to the promoter site only when CAP-cAMP formed

You might be interested in
The flow of air from land to a body of water is called an
erastova [34]

I believe the answer may be a sea breeze

7 0
3 years ago
in the northern hemisphere, a wind blowning from the south to the north will cause a current of water in which direction
hichkok12 [17]
Hello,

Here is your answer:

The proper answer to this question is "east".

Here is how:

When the wind blows from the south to the north the current of water will go to the east because of the direction of the air is blowing.

Your answer is east.

If you need anymore help feel free to ask me!

Hope this helps!
5 0
3 years ago
How many times does the calvin cycle have to turn to make one glucose molecule
Maurinko [17]

Answer:

Im not sure what are the choices?

Explanation:

4 0
3 years ago
haemophilia is an x-linked recessive disorder that is always pass their generations that can be traced by using a pedigree what
Marat540 [252]

The probability of the female child of Charles and Marie suffering from hemophilia​ is 50% or 0.5.

<h3>What is the probability of hemophilia?</h3>

Hemophilia is a disease that is linked to the X-chromosome.

The probability of having female who suffers from hemophilia depends on the genotype of the parents.

Assuming that the genotype of the parents are as follows:

Father: XcY --> hemophilic

Mother: XXc --> carrier

A cross between the parents will produce two female offspring with genotypes, XcXc and XXc.

Therefore, the probability of the female child of Charles and Marie suffering from hemophilia​ is 50% or 0.5.

Learn more about hemophilia at: brainly.com/question/14203344

#SPJ1

4 0
1 year ago
esearchers discovered a strain of C. parvum that expresses a functional variation of the lactate dehydrogenase gene. A DNA seque
gregori [183]

Answer:

In case, when an allosteric site undergoes certain modifications it will demonstrate some changes like change in affinity towards the inhibitor, however, how the changes take place is not known exactly because of less knowledge of the FX11 composition. Though it is for sure that the modification will decline the affinity and the FX11 will exhibit less efficacy in preventing the growth of C. parvum.  

An inhibitor targets the allosteric site as the size and the functional groups present within the site matches with that of the inhibitor, and thus affinity is attained. However, when there is a change in structure, the affinity will also get influenced.  

The gossypol and FX11 can be utilized as drugs for human beings as these substances prevent the process of lactic fermentation, and the pathway for lactic fermentation generally is less common in human cells. The parasite C. parvum is found within the digestive tract, and the process of anaerobic respiration usually does not take place in the organs present in the digestive tract. However, in specific cases, only the muscle tissue can go through anaerobic respiration like in the case of performing physical activity. It is also to be noted that the drug can even invade other tissues via blood, therefore, at the time of consuming drugs, there is a need to instruct the patients to prevent any kind of physical activity.  

5 0
3 years ago
Other questions:
  • What was the goal of the Voyager project? A. explore the moon B. explore Venus C. explore the outer planets D. explore Mars
    7·1 answer
  • Nonnative plants and animals pose no danger to an ecosystem.
    13·1 answer
  • Radiation
    14·1 answer
  • Natriuretic peptide inhibits __________ reabsorption by the collecting duct
    14·1 answer
  • As plants grow, stems and branches thicken or increase in girth. This thickening is a result of cells in the vascular cambium. V
    8·2 answers
  • carolus linnaeus created the linnaean system of classification using 2 latin names to designate each organism
    15·1 answer
  • 2. Nuclei are roughly spherical in shape, and
    9·1 answer
  • How does human evolution or natural selection relate to the susceptibility of disease?
    14·1 answer
  • A short paragraph that explains how the ATP cycle works
    13·1 answer
  • Answers
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!