BIOL271 / BIOL 271 Module 6:
(Latest Update )
Microbiology | Questions & Answers
| Grade A | 100% Correct - Portage
Learning
Question:
A virus that infects bacteria is called a [answer1] and contains a [answer2] -
sided polygon capsid.
Answer:
bacteriophage, 20
Question:
True or False: Highly infectious viruses undergo genome replication prior to
viral attachment and entry.
Answer:
False
,Question:
Rank the following viruses based on their size from largest to smallest:
Orthomyxovirus Poliovirus Variolavirus
Answer:
Variolavirus (~200nm) > Orthomyxovirus (100-150nm) > Poliovirus (~30nm)
Question:
True or False. You would expect to see a viral envelope on a virus infecting a
bacterial cell.
Answer:
False. The overwhelming majority of animal viruses are enveloped whereas
the majority of plant or bacteria infecting viruses are not.
Question:
The ________ surrounds the capsid of some viruses
Answer:
Envelope
, Question:
Describe the two basic components of a virus.
Answer:
Two basic components of a virus the genomic material comprised of either
DNA or RNA and a capsid, which is the membrane or protective coat that
contains the genetic material
Question:
Rank the following viruses based on their size from largest to smallest:
Paramyxovirus, poliovirus, smallpox virus
Answer:
Smallpox virus (~200nm) > Paramyxovirus (~100-150nm) > Poliovirus
(~30nm)
Question:
True or false: a patient infected with rubella is only considered infectious
when the trademark rash is visible
Answer:
False, a patient is infectious for one week before and one week after the
appearance of the rash
(Latest Update )
Microbiology | Questions & Answers
| Grade A | 100% Correct - Portage
Learning
Question:
A virus that infects bacteria is called a [answer1] and contains a [answer2] -
sided polygon capsid.
Answer:
bacteriophage, 20
Question:
True or False: Highly infectious viruses undergo genome replication prior to
viral attachment and entry.
Answer:
False
,Question:
Rank the following viruses based on their size from largest to smallest:
Orthomyxovirus Poliovirus Variolavirus
Answer:
Variolavirus (~200nm) > Orthomyxovirus (100-150nm) > Poliovirus (~30nm)
Question:
True or False. You would expect to see a viral envelope on a virus infecting a
bacterial cell.
Answer:
False. The overwhelming majority of animal viruses are enveloped whereas
the majority of plant or bacteria infecting viruses are not.
Question:
The ________ surrounds the capsid of some viruses
Answer:
Envelope
, Question:
Describe the two basic components of a virus.
Answer:
Two basic components of a virus the genomic material comprised of either
DNA or RNA and a capsid, which is the membrane or protective coat that
contains the genetic material
Question:
Rank the following viruses based on their size from largest to smallest:
Paramyxovirus, poliovirus, smallpox virus
Answer:
Smallpox virus (~200nm) > Paramyxovirus (~100-150nm) > Poliovirus
(~30nm)
Question:
True or false: a patient infected with rubella is only considered infectious
when the trademark rash is visible
Answer:
False, a patient is infectious for one week before and one week after the
appearance of the rash
