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finlep [7]
2 years ago
10

I need help with this biology question pls and thankyou pls help

Biology
1 answer:
8090 [49]2 years ago
4 0
The answer to this question is #2 it has guanine and ribose!
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A 14-year-old boy has been diagnosed with infectious mononucleosis. Which of the following pathophysiologic phenomenon is most r
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Answer:

B) Viruses are killing some of his B cells and becoming incorporated into the genomes of others.

Explanation:

Epstein-Barr virus causes infectious mononucleosis by following mechanism.

1) Epstein-Barr virus attaches to and infects epithelium of the throat where it replicates and causes pharyngitis.

2) Virions enter the lymphoid vessels and are carried to the lymph nodes. Some virions escape the lymphnode trap and are carried to the bloodstream.

3) Virions attach specifically to B lymphocytes and infect them, producing either latent infection or productive infection.

4)The infected B lymphocytes actively replicate and differentiate into cells producing random immunoglobulins.

5)T cells respond to infection and destroy the lymphocytes replicating EBV vitus.

6) Latently infected B lymphocytes become immortal. They are not attacked by T cells.

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Response __________ in a magnitude estimation experiment when doubling the stimulus intensity less than doubles the subjective m
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The less-movable end of a skeletal muscle is the
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The less moveable end of the skeletal muscle is the medial or proximal end. It can be found near the point of attachement of the bones called as origin. It can be observed near the midline of the body.

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There are three main reasons for European Exploration. Them being for the sake of their economy, religion and glory. They wanted to improve their economy for instance by acquiring more spices, gold, and better and faster trading routes. Also, they really believed in the need to spread their religion, Christianity.

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