MBIO 3400 Lecture Exam 3 questions with
complete solutions (passed)
1. Dmitri Ivanovsky studied tobacco mosaic disease
2. Martinus Beijerinck found that tobacco mosaic
disease is not caused by a
bacterium
3. Friedrich Loeffler and Paul Frosch found that foot-and-mouth
disease
in animals is caused by a virus
4. Peyton Rous found that malignant
sarcomas in chickens are
caused by a virus
5. Frederick Twort and Felix d'Herelle discovered bacteriophages
6. What technique is used to grow bacteriophage titer
virus- es in the lab?
7. What is a plaque? a clear area of no growth
8. 3 basic shapes of virus particles filamentous, polyhedral, comple
(FPC)
9. enveloped virus A virus enclosed within a
phos- pholipid membrane
derived from its host cell
10. What are the structures on bacterio- head, collar, tail tube,
phage T4? contractile sheath, tail fibers,
baseplate, pins
11. What types of nucleic acids may be
found inside different virus double and single-stranded
particles?
1/
23
, MBIO 3400 Lecture Exam 3 questions with
complete solutions (passed)
DNA and double and single-stranded RNA
12. What is a capsid? protein coat surrounding a virus
2/
23
, MBIO 3400 Lecture Exam 3 questions with
complete solutions (passed)
13. What is a virion? complete virus particle
14. Steps to Lytic Cycle attachment, penetration,
biosynthe- sis, maturation,
release
15. Steps to Lysogenic Cycle attachment, penetration, integra
tion, replication
16. What is a prophage? when viral and bacterial DNA
are one entity
17. What enzyme do retroviruses reverse transcriptase
pos- sess?
18. reverse transcriptase function converts single stranded Viral
RNA
into double stranded Viral DNA
19. Oncogenes cancer causing genes
20. viroids small, circular, single-
stranded RNA molecules
21. How are viroids different from Viroids do not contain a protein
virus- es? coat
22. Prions infectious protein particles
23. What diseases do prions cause? slow, degenerative brain disease
24. Species average characteristics of a
popu- lation of individuals
because they share a
common ancestor
25. What molecular technique is most ribosomal RNA production
commonly used to distinguish
evolu- tionary lineages of
microorganisms?
3/
23
complete solutions (passed)
1. Dmitri Ivanovsky studied tobacco mosaic disease
2. Martinus Beijerinck found that tobacco mosaic
disease is not caused by a
bacterium
3. Friedrich Loeffler and Paul Frosch found that foot-and-mouth
disease
in animals is caused by a virus
4. Peyton Rous found that malignant
sarcomas in chickens are
caused by a virus
5. Frederick Twort and Felix d'Herelle discovered bacteriophages
6. What technique is used to grow bacteriophage titer
virus- es in the lab?
7. What is a plaque? a clear area of no growth
8. 3 basic shapes of virus particles filamentous, polyhedral, comple
(FPC)
9. enveloped virus A virus enclosed within a
phos- pholipid membrane
derived from its host cell
10. What are the structures on bacterio- head, collar, tail tube,
phage T4? contractile sheath, tail fibers,
baseplate, pins
11. What types of nucleic acids may be
found inside different virus double and single-stranded
particles?
1/
23
, MBIO 3400 Lecture Exam 3 questions with
complete solutions (passed)
DNA and double and single-stranded RNA
12. What is a capsid? protein coat surrounding a virus
2/
23
, MBIO 3400 Lecture Exam 3 questions with
complete solutions (passed)
13. What is a virion? complete virus particle
14. Steps to Lytic Cycle attachment, penetration,
biosynthe- sis, maturation,
release
15. Steps to Lysogenic Cycle attachment, penetration, integra
tion, replication
16. What is a prophage? when viral and bacterial DNA
are one entity
17. What enzyme do retroviruses reverse transcriptase
pos- sess?
18. reverse transcriptase function converts single stranded Viral
RNA
into double stranded Viral DNA
19. Oncogenes cancer causing genes
20. viroids small, circular, single-
stranded RNA molecules
21. How are viroids different from Viroids do not contain a protein
virus- es? coat
22. Prions infectious protein particles
23. What diseases do prions cause? slow, degenerative brain disease
24. Species average characteristics of a
popu- lation of individuals
because they share a
common ancestor
25. What molecular technique is most ribosomal RNA production
commonly used to distinguish
evolu- tionary lineages of
microorganisms?
3/
23
