BIO 1020 Final Lecture Exam
Questions and All Correct Answers
2025-2026 Updated.
What is the term for pieces of DNA that move from one genetic element to another & contains
genes for movement as well as genes for other features?
a. transposons
b. insertion sequences
c. plasmids
d. chromatoids - Answer transposons
An outbreak of gastroenteritis occurred on a cruise ship. A stool sample from one of the
passengers contained a very small detergent-resistant virus. What other parameter would be
true for this virus?
a. it only infects bacteria
b. also causses amoebic dysentery
c. it has a naked capsid structure
d. it has an envelope
e. it is neurotropic and causes paralysis - Answer it has a naked capsid structure
All of the following can be transmitted by drinking contaminated water except
a. Cryptosporidiosis
b. Coccidioidomycosis
c. Cyclosporiasis
d. Giardiasis
e. Campylobacter - Answer Coccidioidomycosis
Organisms that have relatively complex nutritional needs, requiring extra media components to
be used for growth, are called:
a. septate
b. fastidious
c. dimorphic
e. virulent - Answer fastidious
What is the role of the agar ingredient in culture medium?
a. it provides a nutritional base for bacterial metabolism
, b. it solidifies the medium and provides a stable culture surface
c. it sterilizes the medium and prevents contamination
d. all the above - Answer it solidifies the medium and provides a stable culture surface
Genetic change in bacterial is accomplished by all of the following except:
a. mutation
b. genetic recombination
c. gene exchange between bacteria
d. vertical transmission
e. none of the above - Answer vertical transmission
Antifungal drug targets may include all of the following except:
a. Sexual spore formation
b. Miotic spindle microtubules
c. Glucan synthesis
d. Ergosterol synthesis
e. Flagella assembly - Answer Flagella assembly
Analysis of the DNA from methicillin- and vancomycin-resistant, gram-positive cocci isolate from
a furuncle on a diabetic patient's toe indicated the presence of DNA sequence from enterococci.
Which of the following processes generated these new bacteria?
a. Lysogeny
b. Restriction enzyme cleavage
c. Transduction
d. Phagocytosis
e. Transformation - Answer Transformation
Intracellular bacterial targets of antibiotics include all of the following except
a. Folate synthesis
b. Topoisomerase
c. Ribosome
d. Peptidoglycan synthesis
e. Mitochondria - Answer Topoisomerase
Bacterial antibiotics targeted to the ribosome are effective because
Questions and All Correct Answers
2025-2026 Updated.
What is the term for pieces of DNA that move from one genetic element to another & contains
genes for movement as well as genes for other features?
a. transposons
b. insertion sequences
c. plasmids
d. chromatoids - Answer transposons
An outbreak of gastroenteritis occurred on a cruise ship. A stool sample from one of the
passengers contained a very small detergent-resistant virus. What other parameter would be
true for this virus?
a. it only infects bacteria
b. also causses amoebic dysentery
c. it has a naked capsid structure
d. it has an envelope
e. it is neurotropic and causes paralysis - Answer it has a naked capsid structure
All of the following can be transmitted by drinking contaminated water except
a. Cryptosporidiosis
b. Coccidioidomycosis
c. Cyclosporiasis
d. Giardiasis
e. Campylobacter - Answer Coccidioidomycosis
Organisms that have relatively complex nutritional needs, requiring extra media components to
be used for growth, are called:
a. septate
b. fastidious
c. dimorphic
e. virulent - Answer fastidious
What is the role of the agar ingredient in culture medium?
a. it provides a nutritional base for bacterial metabolism
, b. it solidifies the medium and provides a stable culture surface
c. it sterilizes the medium and prevents contamination
d. all the above - Answer it solidifies the medium and provides a stable culture surface
Genetic change in bacterial is accomplished by all of the following except:
a. mutation
b. genetic recombination
c. gene exchange between bacteria
d. vertical transmission
e. none of the above - Answer vertical transmission
Antifungal drug targets may include all of the following except:
a. Sexual spore formation
b. Miotic spindle microtubules
c. Glucan synthesis
d. Ergosterol synthesis
e. Flagella assembly - Answer Flagella assembly
Analysis of the DNA from methicillin- and vancomycin-resistant, gram-positive cocci isolate from
a furuncle on a diabetic patient's toe indicated the presence of DNA sequence from enterococci.
Which of the following processes generated these new bacteria?
a. Lysogeny
b. Restriction enzyme cleavage
c. Transduction
d. Phagocytosis
e. Transformation - Answer Transformation
Intracellular bacterial targets of antibiotics include all of the following except
a. Folate synthesis
b. Topoisomerase
c. Ribosome
d. Peptidoglycan synthesis
e. Mitochondria - Answer Topoisomerase
Bacterial antibiotics targeted to the ribosome are effective because
