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
Shkiper50 [21]
3 years ago
7

Usatestprep--According to the model, what is the role of maltose in the maltose operon?

Biology
2 answers:
Dafna1 [17]3 years ago
6 0

Answer:

The correct answer is C) Maltose promotes the synthesis of the maltose operon functional gene as it acts on the regulatory gene to make it a functional activator

Explanation:

Maltose promotes the synthesis of the maltose operon functional gene as it acts on the regulatory gene to make it a functional activator. The regulatory protein is not functional until maltose is present to bind to the protein. Then, in its altered form, it can bind to the operator of the operon and direct the RNA polymerase to the promoter to increase transcription.  

allsm [11]3 years ago
5 0

Answer:

<u>Inducer</u>

<u></u>

Explanation:

Structural proteins within bacteria are encoded along with their functions. These are typically found in a block of genes called an operon. They undergo transcription together with the use of a single promoter sequence to form a polycystronic transcript- this allows for the simultaneous control and regulation of biochemical pathways. This is efficient as these pathways would either need to function together when "switched on" or will not be needed when "switched off". Repressors are proteins that effectively hinder translation by binding to DNA at the operator site, blocking the activity of RNA polymerase in transcription. However inducers are small molecules that can displace these, freeing up the operon for transcription and the activation of relevant biochemical pathways.

The mal operon includes genes which mediate the breakdown of the substrate maltose in bacterial cells. Maltose, called a malt sugar, is a carbohydrate compound made up of two glucose molecules joined by an α-(1,4) glycosidic linkage.

In the presence of maltose, the inducer binds to the activator. This then allows for the binding of RNA polymerase, which facilitates translation and th epr

You might be interested in
Evesa
Artist 52 [7]

Answer:

Active uptake (which I think you mean active transport) is important when the concentration gradient is against that of a certain substance, so it doesn't cross the membrane through diffusion or passive transport. It is sometimes necessary if a substance needs to move across a membrane but can't do so due to electrical charge or that there is a substance on the other side of the membrane preventing diffusion.

Explanation:

8 0
3 years ago
Giardia does it lead to elevated levels of IgE and eosinophilia?
vaieri [72.5K]

Answer:

No, Giardia is a protozoan that does not cause eosinophilia.

Explanation:

Eosinophilia refers to an increase in the number of eosinophils in the blood. The eosinophil is one of the white blood cells. When this occurs, the circulating eosinophils might be over 400 or 500.

Many factors might cause. One of them is parasite infections, in which helminths trigger the IgE generation, producing eosinophilia.

In the presence of the parasite antigen, eosinophils have a shorter medullar generation time, and they express a higher number of receptors for IgE and IgG. Their function is to damage the parasite, directly or indirectly, and to decrease the damages caused by their presence.

Giardia, among other protozoans, does not cause eosinophilia. Yet some other protozoans and parasites might induce it.

4 0
3 years ago
Collision of which two types of plates create the deepest earthquake Ocean-continental or ocean-ocean
tangare [24]
Ocean-Continental collision would create the deepest earthquake
8 0
2 years ago
Known as the blind gut?​
wolverine [178]

Answer: Caecum of the intestines

Explanation:

The caecum is located in between the large intestine and the ileum and the colon. It is referred to as blind gut because one end of it is close and the other continues into the colon.

4 0
3 years ago
The endocrine system is made up of glands that
ZanzabumX [31]

The endocrine system is made up of glands that produce and secrete hormones, chemical substances produced in the body that regulate the activity of cells or organs. These hormones regulate the body's growth, metabolism (the physical and chemical processes of the body), and sexual development and function

4 0
3 years ago
Other questions:
  • Glacial grooves and striations are scratches or gouges in bedrock created when?
    9·2 answers
  • What is a description of cancer?
    10·2 answers
  • What is a buffer?
    14·2 answers
  • Can amoeba have offspring with different genes and traits
    12·2 answers
  • The term ""insecure laboratory procedures"" in the definition of a bio-hazard presented in this educational module refers to whi
    12·1 answer
  • Why does the land around a once active coal mine remain barren?
    11·1 answer
  • Overfishing in this ecosystem has directly impacted the fish population. If the fish no longer exist in this ecosystem due to ov
    9·1 answer
  • Genetic recombination plays a role in both maintenance and diversity within an organism. Explain how this balance is achieved an
    6·1 answer
  • Occipital and parietal lobes do?
    14·1 answer
  • Oo
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!