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
victus00 [196]
3 years ago
10

3TC is an antiretroviral treatment used to prevent HIV infection from becoming AIDS. After treatment with 3TC, the HIV populatio

n in a patient consists entirely of 3TC-resistant virus particles. What best explain this phenomenon? A) HIV can change its surface proteins through mutations and resist vaccines. B) The patient became re-infected with 3TC-resistant viruses after the initial exposure. C) The drug caused RNA changes to occur, creating a resistance to the once-applicable drug. D) A few drug-resistant viruses were present at the start of treatment and selective pressures increased their frequency.
Biology
1 answer:
Alexxandr [17]3 years ago
5 0

Answer:

D

Explanation:

3TC is an antiretroviral treatment used to prevent HIV infection from becoming AIDS. After treatment with 3TC, the HIV population in a patient consists entirely of 3TC-resistant virus particles. What best explain this phenomenon?

You might be interested in
Apply the principles of diffusion to explain what will occur after placing a dyed sugar cube in a beaker of water
snow_lady [41]

The molecules in the sugar move from an area of higher concentration (sugar cube) to an area of lower concentration in the water.

That is exactly what diffusion is: the net movement of molecules or atoms driven by a gradient , which means that it doesn’t requires energy.


7 0
3 years ago
Hubble's law states that galaxies are receding from us at a speed that is proportional to their ________. distance orientation v
alukav5142 [94]
The distant galaxies we have seen are moving away from earth by the red shift the law that describes its expansion is Hubble's law. It is regarded as the main observational basis on enlargement of the world. and imitation to acquire the supportive evidence over big bang model. It states that galaxies are becoming extinct at a speed that is proportional to their distance. 
3 0
3 years ago
how does aerobic and anaerobic respiration work together to provide a continuos work together to provide a continuous supply of
svetoff [14.1K]
Aerobic and anaerobic respiration each have advantages under specific conditions. Aerobic respiration produces far more ATP, but risks exposure to oxygen toxicity. Anaerobic respiration is less energy-efficient, but allows survival in habitats which lack oxygen.
Within the human body, both aerobic and anaerobic respiration are important.
5 0
4 years ago
In fruit flies, the allele for white eyes is recessive to the allele for red eyes. In a generation of fruit flies, 45 males with
podryga [215]
<span>heterozygous / homozygous refers to whether both alleles for a gene are the same. The organism is homozygous if both alleles are the same - that is, either both are dominant or both are recessive. The organism is heterozygous if the alleles are different - that is, if one allele is dominant and the other allele is recessive..
 the answer to the questions is A. </span><span>One parent was heterozygous for eye color and the other was homozygous with red eyes.</span>
7 0
3 years ago
Read 2 more answers
On early Earth, what was referred to as the "primordial soup"? a. The mixture of gasses in the early Earth's atmosphere. b. The
viktelen [127]
Considering that most soups are warm and salty The answer is B. The combination of organic compounds in warm salty water.
8 0
3 years ago
Read 2 more answers
Other questions:
  • What type of cell has no membrane-bound nucleus?
    12·1 answer
  • Conduction involves the transfer of electric charge or______.
    8·1 answer
  • A biology student is studying ways to grow crops in soils that are high in salts and other dissolved solids. To determine whethe
    11·2 answers
  • 4. What do complement proteins do?
    13·1 answer
  • What type of muscle is found in the leg
    6·1 answer
  • A student is drawing a model of the carbon cycle. Which caption should he include to explain how herbivores contribute to the ca
    13·2 answers
  • True or false? Do most dead organisms become fossils?
    11·1 answer
  • The molecular view shown is best described by which state of water?
    6·1 answer
  • Lightly place your fingers on your wrist or neck and try to find your pulse. Count your pulse for 10 seconds and then multiply t
    6·1 answer
  • The secretion of aldosterone is directly stimulated by _______. The secretion of aldosterone is directly stimulated by _______.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!