13 Questions
What is the primary factor that dictates the details of the replication cycle of an animal virus?
The form of the virus's genome
Which type of virus utilizes an RNA-dependent RNA polymerase to transcribe its mRNA?
RNA viruses
What is the key difference between animal viruses and bacterial viruses in terms of entry mechanism?
Animal viruses enter via membrane fusion while bacterial viruses use endocytosis
What is mandatory for HIV infection to occur in a host cell?
Adhesion of the viral gp120 envelope protein to a specific cell surface marker
In animal cells, where does the viral capsid get delivered during HIV infection?
Cytoplasm
Which virus exhibits broad tropism by infecting many host tissues?
Ebola virus
What enzyme do retroviruses utilize to copy their genomic sequence into DNA for insertion into the host chromosome?
Reverse transcriptase
What is the site of replication for many animal viruses within eukaryotic cells?
Nucleus
Which taxonomic level is represented by the naming 'Escherichia coli'?
Genus
What is the main difference between a strain and a serotype?
Strains are distinct subtypes that differ genetically, while serotypes differ phenotypically.
Which of the following is NOT commonly used to classify bacteria according to shared characteristics?
Number of chromosomes
Which phylum contains the highest percentage of strains in cultivation?
Proteobacteria
What is the key characteristic used to identify two distinct serotypes in bacteria?
Surface antigens recognized by antibodies
Test your knowledge on the completion of DNA replication triggering Z-ring formation in a dividing cell. Explore concepts like replisome movement, terminator sequence completion, and FtsZ protein's role in septum formation.
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