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
seropon [69]
3 years ago
6

Some of the drugs used to treat hiv patients are competitive inhibitors of the hiv reverse transcriptase enzyme. unfortunately,

the high mutation rate of hiv means that the virus rapidly acquires mutations with amino acid changes that make them resistant to these competitive inhibitors. where in the reverse transcriptase enzyme would such amino acid changes most likely occur in drug-resistant viruses?
Biology
2 answers:
REY [17]3 years ago
5 0
Such changes would occur mostly likely near or in the active binding site of the enzyme.
Because the drugs used are competitive inhibitors of the <span>HIV reverse transcriptase enzyme, it means that they connect directly to the active binding site of this enzyme not allowing it to preform its function. If the mutations impede this drugs to work, it is probably because they alter the active binding site of the enzyme, not allowing the drug to bind and have its competitive behaviour permitting the enzyme to work normally. </span><span /><span>
</span>
pav-90 [236]3 years ago
4 0

D. A few drug-resistant viruses were present at the start of treatment and selective pressures increased their frequency.  

if youre on usatestprep

You might be interested in
WILL GIVE BRAINLIEST IF CORRECT AND 66 POINTS
enyata [817]

Answer:

I think it is the first one

Hope this helps

3 0
3 years ago
During a 6 month period, 239 cases of pneumonia occurred in a town of 300 people. A clinical case was defined a fever &gt;102oF
bagirrra123 [75]

Answer:

<em>a. What is the significance of the rainfall? </em>These bacteria resist desiccation, and its dispersion is favored by winds. A decrease in rainfall means a dryer environment, which the bacteria can resist and makes it easier for the cell to be carried somewhere else by winds.  

<em>b. The etiologic agent of the disease is </em><em>Coxiella burnetii</em>

<em>c. This is an example of</em>  a zoonosis  

Explanation:

Q fiber Pneumonia is a zoonosis world-widely distributed and of global importance, which etiologic agent is <em>Coxiella bunetti</em><em>.</em>

  • Zoonosis: Referred to as the infectious diseases that are naturally transmitted from animals to human beings. Among zoonotic pathogens, there are bacteria, viruses, or parasites. They propagate by direct contact, water, and wind, among others. These diseases represent a global importance problem due to the close ties with animals. Zoonotic diseases increase even more as human being keeps dispersing and invading natural wild environments to raise cattle and farm, among other activities.
  • The etiologic agent is the element that propitiates the origin and evolution of a disease. Many bacteria and viruses might be considered to be one of the most common etiological agents.

Populations in contact with goats, sheep, and cattle, use to have a positive result for antibodies against <em>Coxiella burnetii</em>. This bacteria is transmitted to humans orally and by inhalation. The microorganisms resist extreme conditions and are highly infectious. The inhalation of only one cell can produce an important infection in the host. It resists desiccation and any other environmental degradation. They can persist for several months and be transported by winds to farther places. This makes it even more difficult to determine the epidemiologic origin.

<em>  </em>

7 0
3 years ago
Question 6
ycow [4]

Answer:

Cytoskeleton

Explanation:

It provide mechanical support that enables cells to carry out function like division and movement

3 0
3 years ago
Basically, what occurs in the countercurrent multiplier process? basically, what occurs in the countercurrent multiplier process
Anit [1.1K]
The answer is the last one. Countercurrent multiplication in the kidneys is the way toward utilizing vitality to create an osmotic slope that empowers you to reabsorb water from the tubular liquid and deliver concentrated pee. It is discovered broadly in nature and particularly in mammalian organs. 
Countercurrent multiplication was initially considered as a system whereby pee is gathered in the nephron. At first, concentrated in the 1950s by Gottschalk and Mylle following Werner Kuhn's hypotheses, this instrument picked up notoriety simply after a progression of confounded micropuncture tests.
5 0
3 years ago
Read 2 more answers
The net effect of the effector is to shut off the original ________, or reduce its intensity, during the negative feedback mecha
Karo-lina-s [1.5K]

Answer:

option D

Explanation:

Negative feedback is a mechanism in which function of a cell or an organ is decreased. It lessened the output of a system and maintain system function which is known as homeostasis. It is a regulatory mechanism of normal physiology. Some of examples are

blood sugar level regulation, regulation of blood pressure, thermoregulation and many more.

5 0
3 years ago
Other questions:
  • Why can the same earthquake have different ratings on the Richter Scale and the Moment Magnitude Scale?
    5·1 answer
  • Fossils are related to evolution justify this statement
    15·1 answer
  • summarize the meaning of the following information regarding trait inheritance: For a certain trait, identical twins have concor
    9·1 answer
  • Which statement correctly describes a scientific theory?
    14·2 answers
  • Which statement about how organisms depend on abiotic factors in an aquatic ecosystem is not true?
    13·2 answers
  • Pink fairy armadillo homologous structure are similar to human homologous structure. But how?
    11·1 answer
  • This a question that you need to apply knowledge of both the digestive system AND biochemistry. You eat
    5·1 answer
  • What is the name of this inheritance pattern?
    12·1 answer
  • as a result of ach stimulation, calcium ions are released from the ______ of the sarcoplasmic reticulum.
    11·1 answer
  • Photosynthetic and chemosynthetic organisms can be called primary producers because they make their own food?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!