BIO 205 Microbiology MIDTERM EXAM (2025/2026) QUESTIONS
AND (elaborated) ANSWERS WITH COMPLETE SOLUTIONS
Fungi are important because of their ability to - (ANSWERS)help many
plants grow, cause disease in plants, make certain foods and beverages, and
spoil food.
All fungi have ____ in their cell walls. - (ANSWERS)chitin
The mechanism by which genes are transferred into bacteria via viruses is
called - (ANSWERS)transduction
The source of variation among microorganisms that were once identical is -
(ANSWERS)mutation
Intercalating agents - (ANSWERS)act during DNA synthesis and often
result in frame shift mutations.
Gene transfer that requires cell-to-cell contact is - (ANSWERS)conjugation
Segments of DNA capable of moving from one area in the DNA to another
are called - (ANSWERS)transposons
,BIO 205 Microbiology MIDTERM EXAM (2025/2026) QUESTIONS
AND (elaborated) ANSWERS WITH COMPLETE SOLUTIONS
A clever technique that streamlines the identification of auxotrophic
mutants is - (ANSWERS)replica plating
Thymine dimers are dealt with by - (ANSWERS)photoreactivation repair
and excision repair
Irradiation of cells with ultraviolet light may cause - (ANSWERS)thymine
dimers
The group of Fungi in which sexual reproduction has not been observed is -
(ANSWERS)Deuteromycetes
A tangle of fungal hyphae is generally known as a - (ANSWERS)mycelium
Which technique(s) is/are used to help identify and classify bacteria? -
(ANSWERS)Microscopic examination, culture characteristics, biochemical
tests, and nucleic acid analysis.
Lichens may be an association of - (ANSWERS)algae and fungus
, BIO 205 Microbiology MIDTERM EXAM (2025/2026) QUESTIONS
AND (elaborated) ANSWERS WITH COMPLETE SOLUTIONS
The terms yeast, mold, and mushrooms refers to fungal -
(ANSWERS)morphology
Gram positive encapsulated diplococci found in sputum is indicative of -
(ANSWERS)Streptococcus pneumoniae
Fungi are often capable of locomotion through the use of flagella. -
(ANSWERS)False
Mycorrhizae - (ANSWERS)are vital for the survival of many plants and
increase the absorptive ability of roots
All known species of bacteria are described in Bergey's Manual of
Systematic Bacteriology. - (ANSWERS)True
Chemical mutagens often act by altering the - (ANSWERS)hydrogen
bonding properties of the nitrogen bases
AND (elaborated) ANSWERS WITH COMPLETE SOLUTIONS
Fungi are important because of their ability to - (ANSWERS)help many
plants grow, cause disease in plants, make certain foods and beverages, and
spoil food.
All fungi have ____ in their cell walls. - (ANSWERS)chitin
The mechanism by which genes are transferred into bacteria via viruses is
called - (ANSWERS)transduction
The source of variation among microorganisms that were once identical is -
(ANSWERS)mutation
Intercalating agents - (ANSWERS)act during DNA synthesis and often
result in frame shift mutations.
Gene transfer that requires cell-to-cell contact is - (ANSWERS)conjugation
Segments of DNA capable of moving from one area in the DNA to another
are called - (ANSWERS)transposons
,BIO 205 Microbiology MIDTERM EXAM (2025/2026) QUESTIONS
AND (elaborated) ANSWERS WITH COMPLETE SOLUTIONS
A clever technique that streamlines the identification of auxotrophic
mutants is - (ANSWERS)replica plating
Thymine dimers are dealt with by - (ANSWERS)photoreactivation repair
and excision repair
Irradiation of cells with ultraviolet light may cause - (ANSWERS)thymine
dimers
The group of Fungi in which sexual reproduction has not been observed is -
(ANSWERS)Deuteromycetes
A tangle of fungal hyphae is generally known as a - (ANSWERS)mycelium
Which technique(s) is/are used to help identify and classify bacteria? -
(ANSWERS)Microscopic examination, culture characteristics, biochemical
tests, and nucleic acid analysis.
Lichens may be an association of - (ANSWERS)algae and fungus
, BIO 205 Microbiology MIDTERM EXAM (2025/2026) QUESTIONS
AND (elaborated) ANSWERS WITH COMPLETE SOLUTIONS
The terms yeast, mold, and mushrooms refers to fungal -
(ANSWERS)morphology
Gram positive encapsulated diplococci found in sputum is indicative of -
(ANSWERS)Streptococcus pneumoniae
Fungi are often capable of locomotion through the use of flagella. -
(ANSWERS)False
Mycorrhizae - (ANSWERS)are vital for the survival of many plants and
increase the absorptive ability of roots
All known species of bacteria are described in Bergey's Manual of
Systematic Bacteriology. - (ANSWERS)True
Chemical mutagens often act by altering the - (ANSWERS)hydrogen
bonding properties of the nitrogen bases
