BIOC20 PRACTICE QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS LATEST UPDATE GRADED A++
Which of the following would not be a nucleic acid found in a viral genome?
a. an RNA:DNA hybrid
b. dsDNA
c. ssDNA
d. ssRNA
e. dsRNA
a. an RNA:DNA hybrid
Assume that you are a scientist in the 1800s and do not have access to modern
technology. If you wanted to show that an infectious agent is a virus, what
experiment could you do?
a. Show that the agent can be seen under a light microscope
b. Show that the agent can pass through a porcelain filter and is still infectious
c. Show that the agent can be denatured and can still cause disease in an animal
d. Show that the agent contains a lipid membrane
b. Show that the agent can pass through a porcelain filter and is still infectious
, To start an experiment, you do an infection by putting 0.5mL of a virus stock that
has a tiger of 6 x 10^7 pfu/mL onto a plate of animal cells that contains 5 x 10^6
cells. What is the multiplicity of infection for this experiment?
a. 12
b. 4
c. 6
d. 8
e. 10
c. 6
All viruses have a lipid bilateral membrane that surrounds the capsids/
nucleocapsids.
a. True
b. False
b. False
The protein shell that surrounds the viral genome is called a __________
capsid
After a viral sample is added to the cells grown in-vitro, it forms a clear area in the
region where the cells are lysed. This clear area is called a _________
Plaque
What is a possible explanation for why ssDNA viruses have genomes less than
10kb in size?
COMPLETE SOLUTIONS LATEST UPDATE GRADED A++
Which of the following would not be a nucleic acid found in a viral genome?
a. an RNA:DNA hybrid
b. dsDNA
c. ssDNA
d. ssRNA
e. dsRNA
a. an RNA:DNA hybrid
Assume that you are a scientist in the 1800s and do not have access to modern
technology. If you wanted to show that an infectious agent is a virus, what
experiment could you do?
a. Show that the agent can be seen under a light microscope
b. Show that the agent can pass through a porcelain filter and is still infectious
c. Show that the agent can be denatured and can still cause disease in an animal
d. Show that the agent contains a lipid membrane
b. Show that the agent can pass through a porcelain filter and is still infectious
, To start an experiment, you do an infection by putting 0.5mL of a virus stock that
has a tiger of 6 x 10^7 pfu/mL onto a plate of animal cells that contains 5 x 10^6
cells. What is the multiplicity of infection for this experiment?
a. 12
b. 4
c. 6
d. 8
e. 10
c. 6
All viruses have a lipid bilateral membrane that surrounds the capsids/
nucleocapsids.
a. True
b. False
b. False
The protein shell that surrounds the viral genome is called a __________
capsid
After a viral sample is added to the cells grown in-vitro, it forms a clear area in the
region where the cells are lysed. This clear area is called a _________
Plaque
What is a possible explanation for why ssDNA viruses have genomes less than
10kb in size?
