1
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bsc1005 exam 2 Questions and Answers
(100% Correct Answers) Already Graded
A+
-------#4 hw
How do viruses make copies of themselves? [ ANS: ] By using the
cellular machinery of the host cell they infected
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Which of the following do not get infected by viruses? [ ANS: ] All
of these can be infected by viruses.
(Bacteria, Animals, Plants.)
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Which of the following is NOT a characteristic of living things? [
ANS: ] creating energy
Homeostasis is a living organism's [ ANS: ] ability to maintain
constant internal conditions even when environmental conditions
change.
Which of the following can be found in bacteria, but not viruses? [
ANS: ] a cell membrane
Viruses are [ ANS: ] not alive because they are not made of cells
and require a host cell for reproduction.
Which of the following statements about viruses is FALSE? [ ANS: ]
False:
The widespread use of antibiotics has led to resistant strains of
viruses.
True:
, 2
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-If a virus mutates, the immune system may not recognize the virus.
-Vaccines are available to prevent several diseases caused by
viruses.
-People can get colds and flus again because the viruses are
constantly mutating.
Why is combination drug therapy for HIV/AIDS less likely to lead to
resistance than single drug therapy? [ ANS: ] The likelihood of one
virus spontaneously mutating to be resistant to several different
drugs at the same time is extremely small.
© 2025 Assignment Expert
Suppose you were in charge of sending an unmanned space
probe to a new planet in search of life. The probe would be able
to collect and test samples and make observations, but the
planet is too far away for the probe to be able to bring samples
Guru01 - Stuvia
back to Earth. The probe is small and would only be able to run a
few tests, so you want to pick a test for evidence of life that is
broad enough to incorporate all forms of life as we know it. Which
one of the following tests would be the best to use in this situation?
[ ANS: ] a test for the presence of cells that contain DNA
Which specific cells are infected by the HIV virus? [ ANS: ] Helper T
cells
How does AZT fight AIDS? [ ANS: ] It blocks the enzyme that
converts viral RNA to DNA.
Where would you find the double-stranded HIV DNA in an
infected cell? [ ANS: ] Incorporated directly into the host cell's
chromosome
HIV has an RNA genome that is converted to DNA when infecting
a human immune cell. This type of virus is called a ________. [ ANS:
] retrovirus
For Expert help and assignment solutions, +254707240657
bsc1005 exam 2 Questions and Answers
(100% Correct Answers) Already Graded
A+
-------#4 hw
How do viruses make copies of themselves? [ ANS: ] By using the
cellular machinery of the host cell they infected
© 2025 Assignment Expert
Which of the following do not get infected by viruses? [ ANS: ] All
of these can be infected by viruses.
(Bacteria, Animals, Plants.)
Guru01 - Stuvia
Which of the following is NOT a characteristic of living things? [
ANS: ] creating energy
Homeostasis is a living organism's [ ANS: ] ability to maintain
constant internal conditions even when environmental conditions
change.
Which of the following can be found in bacteria, but not viruses? [
ANS: ] a cell membrane
Viruses are [ ANS: ] not alive because they are not made of cells
and require a host cell for reproduction.
Which of the following statements about viruses is FALSE? [ ANS: ]
False:
The widespread use of antibiotics has led to resistant strains of
viruses.
True:
, 2
For Expert help and assignment solutions, +254707240657
-If a virus mutates, the immune system may not recognize the virus.
-Vaccines are available to prevent several diseases caused by
viruses.
-People can get colds and flus again because the viruses are
constantly mutating.
Why is combination drug therapy for HIV/AIDS less likely to lead to
resistance than single drug therapy? [ ANS: ] The likelihood of one
virus spontaneously mutating to be resistant to several different
drugs at the same time is extremely small.
© 2025 Assignment Expert
Suppose you were in charge of sending an unmanned space
probe to a new planet in search of life. The probe would be able
to collect and test samples and make observations, but the
planet is too far away for the probe to be able to bring samples
Guru01 - Stuvia
back to Earth. The probe is small and would only be able to run a
few tests, so you want to pick a test for evidence of life that is
broad enough to incorporate all forms of life as we know it. Which
one of the following tests would be the best to use in this situation?
[ ANS: ] a test for the presence of cells that contain DNA
Which specific cells are infected by the HIV virus? [ ANS: ] Helper T
cells
How does AZT fight AIDS? [ ANS: ] It blocks the enzyme that
converts viral RNA to DNA.
Where would you find the double-stranded HIV DNA in an
infected cell? [ ANS: ] Incorporated directly into the host cell's
chromosome
HIV has an RNA genome that is converted to DNA when infecting
a human immune cell. This type of virus is called a ________. [ ANS:
] retrovirus
