دفعة49
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https://whatsapp.com/channel/0029VamfZI7EquiQY8q87J0a قناة الوتس للدفعه 49 مع العلم الرقم لايظهر لا للمتابعين ولاحتى للأدمن وخصوصيه تامه (اطمنوا)
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64. Three of the herpesviruses, causes a vesicular rash HSV types 1, 2 and?
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60. The early genes of DNA viruses code primarily for proteins whose functions are required for:
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59. The term "eclipse period" refers to:
A. the period between epidemic outbreaks of diseases that occur ina cyclic pattern.
B. the pcriod betwcen recurences of disecase in individuals with latent virus infections.
C. the time between exposure of an individual to a virus and the first appearance of discase.
D. the time between infection of a susceptible cell by a cytocidal virus and the first appearance of
cytopathic effects.
E. time between entry into the cell and disassembly of the parental virus and the appearance of the
first progeny virion.
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58. Which one of the following statements concerning the viral replication is correct?
A. Most RNA viruses assemble in the nucleus, whereas most DNA viruses develop solely in cytoplasm
B. DNA viruses must provide virtually all enzymatic and regulatory molecules necded for a complete
replication cycle.
c. Viral (+) single-stranded RNA Serves as the template for complementary (-) strand synthesis using
host RNA-dependant RNA polymerase.
D. In a virus with a single-stranded (ss) RNA genome of(> polarity,. (- ssRNA is translated into viral
proteins.
E. In a virus with a double-stranded RNA genome (+),RNA strands serve both as mRNA and template
for complementary (-) RNA strand synthesis.
