druas
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The World Health Organization identifies an alarming increase in
hospital admissions worldwide attributable to a new and unexpected
serotype of influenza A virus. The biological attribute of influenza
A virus, which allows the sudden appearance of dramatically new genetic
variants, is also present in a limited number of other viral families
. Which of the following viruses also possesses this biological attribute?
A. Coronavirus
B. HIV
C. Measles virus
D. Rabies virus
E. Rotavirus
F. Rubella virus
G. St. Louis encephalitis virus
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| babli
Forum Guru
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B
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| robin082006
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B. HIV (genetic drift causes changes from mutation)
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| babli
Forum Guru
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Robin it's antigenic shift causing abrupt major changes.
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| robin082006
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yeah antigenic shift, thank you
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| skyhigh
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e
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| general malaise
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B
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| huzefa
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E because Influenza has a segmented genome that can rearrange to form this antigenic shift. 3 other viruses also have this feature; Bunyavirus, Arenavirus, Rotavirus (along with Orthomyxovirus).
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| pocas
Forum Elite
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answer B
influenza a , b and HIV undergo genetic drift .
influenza A has a rare genetic shift but when it happens it suffer major changes and it gives a new pandemics .
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| ts97
Forum Senior
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E: influenza and HIV both undergo genetic drift, but the question is about genetic shift. The idea is that both animal and human virus if in the same cell can exchange the RNA's segments, So it's rotavirus, because only rotavirus has segments.
I found it here:
http://virology-online.com/questions/92-4.htm
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