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If the DNA of the provirus is transcribed:
A) Several single mRNA strands are produced
B) A plasmid is made
C) The provirus detaches and becomes lytic
D) One long polygenic mRNA is produced
1 Answer The provirus state exists when:
A) Double-stranded viral DNA is integrated into host cell chromosome
B) Single-stranded viral RNA is integrated into host cell chromosome
C) Double-stranded viral RNA is integrated into host cell chromosome
D) Single-stranded RNA is present as a plasmid in the host cell
E) Double-stranded DNA is present as a plasmid in the host cell
1 Answer Retroviruses have:
A) One copy of single-stranded RNA
B) Two copies of single-stranded RNA
C) One copy of double-stranded RNA
D) Two copies of single-stranded DNA
1 Answer Plasmids are small pieces of DNA that may carry genetic information for antibiotic resistance.
True
False
1 Answer If one donor cell is mixed with 20 recipient cells, eventually _ cells will become donors.
2
5
10
15
20
1 Answer The mechanism of entry into a host cell involves protein rearrangements in what part of the virus structure?
Capsid
Base plate
DNA
Tail Fibers
1 Answer The particular virus studied in this research was one that infects E-coli bacteria called:
T-4
West Nile Virus
Varicella zoster
HIV
1 Answer Donor DNA is combined with recipient DNA by homologous recombination.
A) True
B) False
1 Answer What type of microscope has a high enough resolution to examine some viruses?
Compound microscope
Stereomicroscope
Electron microscope
Phase contrast microscope
1 Answer In transformation, both strands of donor DNA enter the recipient cell.
A) True
B) False
1 Answer
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan