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BSC 120 Chapter 1 Final Exam Prep Questions. A) Klebsiella pneumonia and E. coli can easily exchange genetic material. Antibiotic resistance was passed from Klebsiella pneumonia to E. coli by horizontal gene transfer in each of the co-infected patients. - CORRECT ANSWER Gentamicin is an antibi...

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  • August 4, 2024
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  • 2024/2025
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BSC 120 Chapter 1 Final Exam Prep
Questions.

A) Klebsiella pneumonia and E. coli can easily exchange genetic material. Antibiotic resistance was
passed from Klebsiella pneumonia to E. coli by horizontal gene transfer in each of the co-infected
patients. - CORRECT ANSWER Gentamicin is an antibiotic that is used to treat bacterial infections. A
hospital reports a sudden outbreak of a new gentamicin-resistant strain of Escherichia coli in 5 out of 25
patients of the intensive care unit. On further investigation, it was determined that this new strain was
found only in patients that were also infected with a known gentamicin-resistant strain of Klebsiella
pneumonia. What is the most likely explanation for the development of this new antibiotic resistant
strain of Escherichia coli?



A) Klebsiella pneumonia and E. coli can easily exchange genetic material. Antibiotic resistance was
passed from Klebsiella pneumonia to E. coli by horizontal gene transfer in each of the co-infected
patients.

B) A single spontaneous mutation arose in E. coli from a single patient leading to gentamicin resistance
in that patient. This mutation was passed along to the E. coli in other patients by vertical descent.

C) Spontaneous mutations arose separately in the E. coli strains from each of the 5 patients, leading to
the separate evolution of gentamicin resistance in E. coli from each of the 5 patients.



2, 1, 4, 3 - CORRECT ANSWER The formulation of a hypothesis is based on observations and refined by
available information from past observations or research. Place the following statements in the
appropriate sequence showing the progression from an observation to a testable hypothesis.



1. Does temperature affect the growth of mold or is the difference in mold growth related to differences
between the bread and the rolls?



2. You notice that bread you left on the counter has more mold on it than do the rolls that you left in the
refrigerator.



3. Bread placed in warmer temperatures should develop mold faster and more extensively than bread
placed in colder temperatures.

, 4. Colder temperatures impede the growth of mold.



Ecology - CORRECT ANSWER Bar-headed Geese migrate from their breeding grounds to their wintering
grounds by flying over the highest peaks of the Himalayan Mountains where oxygen levels in the air are
extremely low, and yet these birds can produce enough muscle power to complete the arduous journey
over the tops of the mountains.



Match the following research question about this amazing feat with the appropriate area of biology that
could investigate each question.



What environmental cues and landmarks do the geese use to determine the timing and direction of
their migration over the mountains? How do they find their way?



Anatomy and physiology - CORRECT ANSWER Bar-headed Geese migrate from their breeding grounds to
their wintering grounds by flying over the highest peaks of the Himalayan Mountains where oxygen
levels in the air are extremely low, and yet these birds can produce enough muscle power to complete
the arduous journey over the tops of the mountains.



Match the following research question about this amazing feat with the appropriate area of biology that
could investigate each question.



How do the circulatory and respiratory systems meet the demands of increased oxygen consumption in
the face of oxygen-poor air?



Cell biology - CORRECT ANSWER Bar-headed Geese migrate from their breeding grounds to their
wintering grounds by flying over the highest peaks of the Himalayan Mountains where oxygen levels in
the air are extremely low, and yet these birds can produce enough muscle power to complete the
arduous journey over the tops of the mountains.



Match the following research question about this amazing feat with the appropriate area of biology that
could investigate each question.



Is the number of mitochondria (energy producers of the cell) in muscle cells of Bar-headed Geese larger
than those of other species of geese that have less demanding migration routes?

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