Biology Questions and Answers
- What is meant when it is
said that a virus is in an
inactive state?
Viruses considerthose whose genetic materialed in inactive is within state are
host cells without synthproteins and assemblagesis of virale of new virus. (^)
The life cycle of these viruses can be
activated uthen synthesisnder certain conditions of viral proteins begins and
and new copies are made.
The virus that causes herpes (herpes
virus) is an examstays in an inactiveple of a virus that state and is
sometimes activated.
- What are the main human
diseases caused by virus?
Among diseases caused by virus are
commo(considered eradicated non cold, mumps, variolawadays), (^)
rubella, measles, AIDS, the viral
hepatitis, human papillomatosisinfection), rabies, dengue fever, yellow (HPV (^)
fever, poliomyelitis (an almost
eradicated countries), hdisease emorrhagic fin developedever from (^)
Ebola virus, SARS (severe acute
respiratory syndrome).
Viruses also cause many other diseases
in animals and plants.
- SARS is a disease that
appeared in 2003 with
epidemic features in the
province of Guangdong, in
east China. What type of agent
causes SARS?
SARS is caused by a virus from the
coronavirus g(retrovirus). SARSroup, a RNA can be virus fatal. - What is crystallization of a
virus? What is the importance
of this process?
Crystallizationtransformation o is the process of viral components intof (^)
organized solid particles.
Crystallization of biological
macromolcomponents, isecules, inclu used to studing viraldy structural (^)
characteristics, for example, through X-
rays, laser beams, etc.
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