BIOD 171 Exam 6 2026/2027 UPDATED
QUESTIONS WITH ANSWERS GRADED A+
• Describe the two basic components of a virus . -✓✓ A has virus ( 1 ) genomic
material comprised of either DNA or RNA and ( 2 ) a capsid , a membrane - like
protective structure that contains the genetic material , similar to the nucleus of a
eukaryotic cell .
• True or False . Because the genome is contained within an enclosed space ( much
like the nucleus of a cell ) , viruses classified as eukaryotic . -✓✓ False
• The envelope surrounds the ________ of some viruses . -✓✓ capsid
• True or False . You would expect to see a viral envelope on a virus infecting a
plant cell . -✓✓ False
• The __________ surrounds the capsid of some viruses . -✓✓ envelope
• Rank the following viruses based on their size from largest to smallest :
Orthomyxovirus, Poliovirus, Variolavirus -✓✓ Variolavirus, Orthomyxovirus,
Poliovirus
• True or False : Highly infectious viruses undergo genome replication prior to
viral attachment and entry . -✓✓ False
• True or False : Viral replication occurs after it attaches and enters the host cell . -
✓✓ True
, • Place the following viral life cycle steps in order beginning with viral attachment
and provide a description of each step . Uncoating : Release : Replication :
Attachment : Entry : New infection : -✓✓ 1. viral attachment : viral receptors bind
to the host proteins on surface of cell 2. entry : the virus fuses with host membrane
3. uncoating : the viral capsid disassembles 4. replication : viral genome makes
copies of itself 5. release : new virus particles are produced and leave the cell 6.
new infection : newly produced viruses leave the host cell and infect new cells
• A virus that infects bacteria is called a [ answer1 ] and contains a [ answer2 ] -
sided polygon capsid . -✓✓ 1. Bacteriophage 2. 20
• True or False . Structurally , bacteriophages are similar to viruses that infect
ANIMALS . -✓✓ False
• True or False . Structurally , bacteriophages are distinct from viruses that infect
plant or animal cells . -✓✓ True
• Describe the main differences between lytic and temperate phages . -✓✓ Lytic
bacteriophages replicate within the host bacteria cell until it reputures
Temporate phages exist in a non - replicative state that does not kill host cell
• Which of the following can be spread via airborne particles : -✓✓ All of the
above
• True or False . A patient infected with rubella is considered infectious one week
before and after the appearance of the trademark rash . -✓✓ True
• A patient diagnosed with German measles may additionally experience what
disease ? Select all that apply . -✓✓ Conjunctivitis ; Influenza - like symptoms .
QUESTIONS WITH ANSWERS GRADED A+
• Describe the two basic components of a virus . -✓✓ A has virus ( 1 ) genomic
material comprised of either DNA or RNA and ( 2 ) a capsid , a membrane - like
protective structure that contains the genetic material , similar to the nucleus of a
eukaryotic cell .
• True or False . Because the genome is contained within an enclosed space ( much
like the nucleus of a cell ) , viruses classified as eukaryotic . -✓✓ False
• The envelope surrounds the ________ of some viruses . -✓✓ capsid
• True or False . You would expect to see a viral envelope on a virus infecting a
plant cell . -✓✓ False
• The __________ surrounds the capsid of some viruses . -✓✓ envelope
• Rank the following viruses based on their size from largest to smallest :
Orthomyxovirus, Poliovirus, Variolavirus -✓✓ Variolavirus, Orthomyxovirus,
Poliovirus
• True or False : Highly infectious viruses undergo genome replication prior to
viral attachment and entry . -✓✓ False
• True or False : Viral replication occurs after it attaches and enters the host cell . -
✓✓ True
, • Place the following viral life cycle steps in order beginning with viral attachment
and provide a description of each step . Uncoating : Release : Replication :
Attachment : Entry : New infection : -✓✓ 1. viral attachment : viral receptors bind
to the host proteins on surface of cell 2. entry : the virus fuses with host membrane
3. uncoating : the viral capsid disassembles 4. replication : viral genome makes
copies of itself 5. release : new virus particles are produced and leave the cell 6.
new infection : newly produced viruses leave the host cell and infect new cells
• A virus that infects bacteria is called a [ answer1 ] and contains a [ answer2 ] -
sided polygon capsid . -✓✓ 1. Bacteriophage 2. 20
• True or False . Structurally , bacteriophages are similar to viruses that infect
ANIMALS . -✓✓ False
• True or False . Structurally , bacteriophages are distinct from viruses that infect
plant or animal cells . -✓✓ True
• Describe the main differences between lytic and temperate phages . -✓✓ Lytic
bacteriophages replicate within the host bacteria cell until it reputures
Temporate phages exist in a non - replicative state that does not kill host cell
• Which of the following can be spread via airborne particles : -✓✓ All of the
above
• True or False . A patient infected with rubella is considered infectious one week
before and after the appearance of the trademark rash . -✓✓ True
• A patient diagnosed with German measles may additionally experience what
disease ? Select all that apply . -✓✓ Conjunctivitis ; Influenza - like symptoms .
