Virology Exam 2 Questions With Correct
Answers
What virus causes measles - answerparamyxovirus
Does measles have a vaccine - answerYes
What are the 4 factors influencing virus infection - answerAge, General health and nutrition,
Genetic factors, and Immunity
What are innate defenses - answerI...
Synthetic IFN can be used for treatment of - answer✔Chronic hepatitis B, AIDS,
Papillomaviruses, various cancers
________ congregate in the lymph nodes and exit through the outgoing lymph vessels -
answer✔Lymphocytes
Where are B lymphocytes born and mature - answer✔They are born and mature in the bone
marrow
Where are T lymphocytes mature - answer✔They mature in the thymus gland
Plasma - answer✔Fluid component of blood including clotting factors
Serum - answer✔Fluid component of blood minus clotting factors (usually used as a source for
antibodies)
T-cell independent antibody response - answer✔Receptors on B cells react with a specific virus
antigen, B cells are activated and mature into plasma cells, plasma cells secrete antibodies
against the specific virus, long-lived memory B cells are induced
T-cell dependent antibody response - answer✔Dendritic cells process viral antigen and present
antigen to T-helper cells, activated T-helper cells bind to activated B cells, plasma cells secrete
antibodies against the specific virus, long-lived memory B cells are induced
IgG - answer✔Shows a past virus
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