answer.
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
Lyrx
3 months ago
5

The ara operon is controlled by a regulator protein that exerts ________.

Biology
1 answer:
Tresset [2.2K]3 months ago
7 0

The AraC protein associated with the ara operator functions as a repressor to prevent transcription of the ara operon. In the presence of arabinose, the AraC protein acts as an activator; however, in its absence, it serves as a repressor. When arabinose is not available, AraC remains as a
homodimer. One AraC molecule attaches to the ara initiator while another binds to a distinct regulatory region in the DNA known as the ara operator.

You might be interested in
Cells sometimes use passive transport to move molecules across their membranes. The rate at which a cell engages in passive tran
Tresset [2298]

Response:

b

Explanation:

4 0
3 months ago
Phosphorus cycles between living things and the
s2008m [2378]

Phosphorus cycles through living organisms and the SOIL.

Explanation:

Phosphorus circulates through rocks, water, soil, sediments, and living beings. The phosphorus cycle constitutes a biogeochemical cycle illustrating phosphorus activity within the lithosphere, hydrosphere, and biosphere. It is a vital element necessary for all forms of life. In its phosphate form (PO4), it contributes to the structural framework that stabilizes DNA and RNA.


7 0
3 months ago
Read 2 more answers
Por qué las plantas de regiones lluviosas tienen en sus hojas abundantes estomas?
garik1379 [2080]

Cuando el agua es abundante (no limita), las plantas tienen la capacidad de poseer más estomas, lo que aumenta el acceso al agua (y a los iones de hidrógeno necesarios) y proporciona un mejor soporte a los tejidos herbáceos.

Espero que esta respuesta sea correcta :)

8 0
4 months ago
Other questions:
  • When the protein gramicidin is integrated into a membrane, an H+ channel forms and the membrane becomes very permeable to proton
    10·1 answer
  • Tim was admitted for anemia associated with a malignant carcinoma of the left lung. He received treatment for the anemia at this
    7·1 answer
  • A ________ is a whip — or anything else that is punishing and dreadful. You could confront "a ________ of corruption" or "a ____
    8·1 answer
  • A Chlorella cell viewed through a microscope is 0.00005 m wide when the magnification is 2000.
    14·1 answer
  • Among cattle, having horns is a recessive trait. Cattle without horns, which are called polled cattle, are common. Suppose a hor
    13·2 answers
  • Identify which property of water cohesion, adhesion, or heat capacity applies to each observation below.
    10·2 answers
  • Phosphofructokinase is an important control enzyme. All of the following statements concerning this enzyme are true except:
    6·1 answer
  • Activation of the parasympathetic nervous system _____ salivation and decreases blood pressure.
    11·1 answer
  • Determine whether each statement refers to species diversity or genetic diversity. Every organism in an ecosystem relies on othe
    15·2 answers
  • Which organ contributes to the homeostasis of riboflavin by removing the excess?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!