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
ExtremeBDS [4]
3 years ago
13

A. Measles generates a weak immune response that allows reinfection of hosts, and therefore does not easily evolve escape varian

ts.
b. Human influenza a virus evolves escape variants, resulting in a distinctive cactus-shaped phylogeny.
c. Measles experiences strong selection for escape variants, resulting in a phylogeny similar to a nonpathogenic species.
d. Human influenza a generates lifelong immunity, so there is no selection for escape variants.
Biology
1 answer:
Doss [256]3 years ago
3 0

The correct answers are:

b. Human influenza a virus evolves escape variants, resulting in a distinctive cactus-shaped phylogeny.  

All types of Human influenza viruses evolve to escape immunity induced by prior infections and vaccinations.

c. Measles experiences strong selection for escape variants, resulting in a phylogeny similar to a nonpathogenic species.  

As a result of measles infection, specific antibody and CD4 and CD8 T cell responses are generated and contribute to virus clearance and protection from reinfection.

 


You might be interested in
Unconformities occur when:
AURORKA [14]
<span>Unconformities occur when younger rock is placed on top of older rock

hope this helps
</span>
5 0
3 years ago
Read 2 more answers
(03.07 hc) what will the future of developing biotechnology, such as cloning, most likely require of society? (1 point) group of
slava [35]

Maintaining the expensive labs required for Making the clones  will the future of developing biotechnology, such as cloning, most likely require of society

What is biotechnology explain?

Biotechnology is technology that utilizes biological systems, living organisms or parts of this to develop or create different products. Brewing and baking bread are examples of processes that fall within the concept of biotechnology (use of yeast (= living organism) to produce the desired product).

What biotechnology is used for?

Biotechnology has the potential to create novel diagnostics, vaccines, drugs, and other medical countermeasures needed to detect, prevent, and treat infectious diseases

Learn more about Biotechnology:

brainly.com/question/11231566

#SPJ4

7 0
2 years ago
Based on the data, which gummy bear was in the salt solution and what was the tonicity of that solution? A) A; hypotonic B) D; h
Lady_Fox [76]

Answer: The correct answer is D

C Hypertonic

Explanation:

7 0
2 years ago
Read 2 more answers
A single-celled organism can be classified as a prokaryote based on the absence of —
lakkis [162]

Answer:

a nucleus or organelles :)

Explanation:

a prokaryote is a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles.

3 0
3 years ago
Which mineral forms through sedimentary processes
kramer
I think it will be B not fully sure
7 0
3 years ago
Other questions:
  • Why do blood vessels and lymph vessels have valves?
    15·1 answer
  • According to the model by Case and Taper, gene flow plays a role in limiting species ranges because
    8·1 answer
  • 4. Compare and contrast the structure and function of a compound light microscope and a dissecting microscope. Be sure to discus
    10·1 answer
  • Which of the following activities would most likely be done by a physiologist?
    11·2 answers
  • Select the best answer for the question
    13·1 answer
  • In human development what must be present before tissue is formed?
    12·2 answers
  • Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings?
    9·1 answer
  • A hormone is an organ that secretes chemical substances into the bloodstream. Please select the best answer from the choices pro
    10·2 answers
  • Which of the following is NOT a
    12·1 answer
  • What type of feedback is used to
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!