What is the correct sequence of events in viral reproduction?
A. endocytosis, uncoating, maturation, and release
B. attachment, penetration, biosynthesis, maturation and release
C. penetration, attachment, integration, biosynthesis, maturation, release
D. attachment, fusion, biosynthesis, maturation, and release
Answer: B
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What is the most likely reason the peronsporomycetes were originally thought to be fungi?
A. Life cycle similar to that of many fungi B. Yeast like cellular morphology C. Cell wall composition D. Macroscopic appearance of fuzzy growth
A vaccine made from genetically engineered viruses is the basis for immunity against ____
a. small pox b. polio c. tetanus d. influenza e. cholera
A sequence of bases within a gene that will be transcribed, but removed from the transcript prior to translation is a/an
A) Intron B) Operator C) Operon D) Promoter E) Exon
The respiratory systems of fish and birds are similar in that both______________.
A. utilize air sacs. B. have similar partial pressures of oxygen in the environmental medium. C. have unidirectional flow of the environmental medium over the gas exchange surfaces. D. employ countercurrent exchange.