Bio 1013 Exam – Questions With Correct Solutions
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Terms in this set (59)
All of these statements are true nearly 1% of the US population is colonized with S.
regarding S. Aureus EXCEPT: Aureus
Which process has been shown to 1. Gene swapping with other bacterial strains
contribute to the evolution of 2. Overuse of antiviral medications
antibiotic resistance in S. Aureus? 3. Genetic Mutations during asexual reproduction
Why is the evolution of antibiotic 1. Any use of antibiotics will select for resistant
resistance in bacteria happening so bacteria
quickly? 2. Overuse of antibiotics in livestock
3. Overuse of antibiotics in humans
4. Bacteria can reproduce so quickly
A bacterial cell with which The ability to produce an enzyme that breaks down
modification might be resistant to the antibiotic
antibiotics such as methicillin?
A bacterial cell that is resistant to a Its fitness would be lower than other strains that lack
particular antibiotic may spend a large resistance because it is spending energy that the
amount of energy producing the resistant strains can use for other purposes, such as
modified proteins that are needed for reproduction
resistance. In such a case, what would
be the effect on this cell's fitness if no
antibiotic was present?
Antibiotic-resistant strains of bacteria Antibiotics are more likely to be present in hospitals,
tend to first be found in hospitals. thus selecting for resistant strains
Which factor explains why this is the
case?
, An organism's fitness depends on its Ability to survive and reproduce
_________.
Which statement regarding drug- Bacteria that are sensitive to antibiotics have a
resistant bacteria is false? reproductive advantage in all environments
What is the evolutionary process Natural selection
called that causes antibiotic-resistant
bacteria to increase and antibiotic-
sensitive bacteria to decrease in an
environment where antibiotics are
present?
Which factor is not going to affect 1. Survival rate of individuals
how natural selection acts on a given 2. Which phenotypes are present
group of organisms? 3. Reproductive success of individuals
Which statement expressed the only Stop using antibiotics entirely
way to prevent the evolution of new
antibiotic-resistant bacteria?
Which statement about evolution by Natural selection is a random change in allele
natural selection is false? frequencies over generations
Why aren't human populations Because the rate of human evolution is much slower
evolving to produce immune systems than bacterial evolution
that are able to fight off MRSA and
other "superbugs"?
The development and spread of a Adaptation
new gene for antibiotic-resistance in a
population of bacteria that are
exposed to that antibiotic would mean
that trait is a(n) ___________.
Save Groups
Terms in this set (59)
All of these statements are true nearly 1% of the US population is colonized with S.
regarding S. Aureus EXCEPT: Aureus
Which process has been shown to 1. Gene swapping with other bacterial strains
contribute to the evolution of 2. Overuse of antiviral medications
antibiotic resistance in S. Aureus? 3. Genetic Mutations during asexual reproduction
Why is the evolution of antibiotic 1. Any use of antibiotics will select for resistant
resistance in bacteria happening so bacteria
quickly? 2. Overuse of antibiotics in livestock
3. Overuse of antibiotics in humans
4. Bacteria can reproduce so quickly
A bacterial cell with which The ability to produce an enzyme that breaks down
modification might be resistant to the antibiotic
antibiotics such as methicillin?
A bacterial cell that is resistant to a Its fitness would be lower than other strains that lack
particular antibiotic may spend a large resistance because it is spending energy that the
amount of energy producing the resistant strains can use for other purposes, such as
modified proteins that are needed for reproduction
resistance. In such a case, what would
be the effect on this cell's fitness if no
antibiotic was present?
Antibiotic-resistant strains of bacteria Antibiotics are more likely to be present in hospitals,
tend to first be found in hospitals. thus selecting for resistant strains
Which factor explains why this is the
case?
, An organism's fitness depends on its Ability to survive and reproduce
_________.
Which statement regarding drug- Bacteria that are sensitive to antibiotics have a
resistant bacteria is false? reproductive advantage in all environments
What is the evolutionary process Natural selection
called that causes antibiotic-resistant
bacteria to increase and antibiotic-
sensitive bacteria to decrease in an
environment where antibiotics are
present?
Which factor is not going to affect 1. Survival rate of individuals
how natural selection acts on a given 2. Which phenotypes are present
group of organisms? 3. Reproductive success of individuals
Which statement expressed the only Stop using antibiotics entirely
way to prevent the evolution of new
antibiotic-resistant bacteria?
Which statement about evolution by Natural selection is a random change in allele
natural selection is false? frequencies over generations
Why aren't human populations Because the rate of human evolution is much slower
evolving to produce immune systems than bacterial evolution
that are able to fight off MRSA and
other "superbugs"?
The development and spread of a Adaptation
new gene for antibiotic-resistance in a
population of bacteria that are
exposed to that antibiotic would mean
that trait is a(n) ___________.
