BIO 250 MICROBIOLOGY MIDTERM
EXAM 2026 QUESTIONS AND
ANSWERS | A+ GRADED | WITH
EXPERT SOLUTIONS
Fungi are important because of their ability to - correct answer -
help many plants grow, cause disease in plants, make certain
foods and beverages, and spoil food.
All fungi have ____ in their cell walls. - correct answer -chitin
The mechanism by which genes are transferred into bacteria via
viruses is called - correct answer -transduction
The source of variation among microorganisms that were once
identical is - correct answer -mutation
Intercalating agents - correct answer -act during DNA synthesis
and often result in frame shift mutations.
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Gene transfer that requires cell-to-cell contact is - correct answer
-conjugation
Segments of DNA capable of moving from one area in the DNA to
another are called - correct answer -transposons
A clever technique that streamlines the identification of
auxotrophic mutants is - correct answer -replica plating
Thymine dimers are dealt with by - correct answer -
photoreactivation repair and excision repair
Irradiation of cells with ultraviolet light may cause - correct answer
-thymine dimers
The group of Fungi in which sexual reproduction has not been
observed is - correct answer -Deuteromycetes
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A tangle of fungal hyphae is generally known as a - correct
answer -mycelium
Which technique(s) is/are used to help identify and classify
bacteria? - correct answer -Microscopic examination, culture
characteristics, biochemical tests, and nucleic acid analysis.
Lichens may be an association of - correct answer -algae and
fungus
The terms yeast, mold, and mushrooms refers to fungal - correct
answer -morphology
Gram positive encapsulated diplococci found in sputum is
indicative of - correct answer -Streptococcus pneumoniae
Fungi are often capable of locomotion through the use of flagella.
- correct answer -False