ACTUAL D311: WGU Microbiology with
Lab: PAQuiz QUESTIONS AND VERIFIED
CORRECT ANSWERS GRADED A+
[LATEST 2026-2027] 100%
GUARANTEED PASS
Which viral virulence factor requires adjustments to the influenza vaccine annually?
A. Antigenic variation
B. Encapsulation
C. Adhesion
D. Replication - CORRECT ANSWER-A. Antigenic variation
Which pair of enzymes are produced by some bacteria that causes the clotting of blood to
protect the bacteria in the bloodstream, then a digestion of the clots to allow the bacteria to
spread?
A. Coagulase and kinase
B. Protease and phospholipid
C. Hyaluronidase and collagenase
D. Coagulase and nuclear - CORRECT ANSWER-A. Coagulase and kinase
How does coinfection of a single cell by multiple strains of a virus increase its pathogenicity?
A. Coinfection provides the opportunity for an antigenic shift
B. Coinfection limits the opportunity for harmful mutations
C. Coinfection provides the animal to adapt to the pathogen
, D. Coinfection provides the opportunity for the pathogen to integrate into the cells genome -
CORRECT ANSWER-A. Coinfection provides the opportunity for an antigenic shift.
Canned food is heated and sealed in sterile containers to provide a longer shelf life and prevent
spoilage. Improper canning results in the growth of microorganisms, which may result in food
containers that swell and explode.
Which staining technique can be used to identify these microorganisms?
A. Endospore staining
B. Negative staining
C. Acid fast staining
D. Flagella staining - CORRECT ANSWER-A. Endospore staining
A student in a lab has just completed an endospore stain of Bacillus anthracis and realized that
heat was not applied during the staining technique.
What will the student see upon microscopic examination of the slide?
A. Pink vegetative cells with clear round areas
B. Pink vegetative cells with green round areas
C. Blue vegetative cells with clear round areas
D. Blue vegetative cells with pink round areas - CORRECT ANSWER-A. Pink vegetative cells with
clear round areas.
A physician is given a vaginal swab in order to test for post-antibiotic vaginal infection.
Which microscopic technique would identify opportunistic fungal pathogen?
A. Wet mount stain
B. Flagella stain
Lab: PAQuiz QUESTIONS AND VERIFIED
CORRECT ANSWERS GRADED A+
[LATEST 2026-2027] 100%
GUARANTEED PASS
Which viral virulence factor requires adjustments to the influenza vaccine annually?
A. Antigenic variation
B. Encapsulation
C. Adhesion
D. Replication - CORRECT ANSWER-A. Antigenic variation
Which pair of enzymes are produced by some bacteria that causes the clotting of blood to
protect the bacteria in the bloodstream, then a digestion of the clots to allow the bacteria to
spread?
A. Coagulase and kinase
B. Protease and phospholipid
C. Hyaluronidase and collagenase
D. Coagulase and nuclear - CORRECT ANSWER-A. Coagulase and kinase
How does coinfection of a single cell by multiple strains of a virus increase its pathogenicity?
A. Coinfection provides the opportunity for an antigenic shift
B. Coinfection limits the opportunity for harmful mutations
C. Coinfection provides the animal to adapt to the pathogen
, D. Coinfection provides the opportunity for the pathogen to integrate into the cells genome -
CORRECT ANSWER-A. Coinfection provides the opportunity for an antigenic shift.
Canned food is heated and sealed in sterile containers to provide a longer shelf life and prevent
spoilage. Improper canning results in the growth of microorganisms, which may result in food
containers that swell and explode.
Which staining technique can be used to identify these microorganisms?
A. Endospore staining
B. Negative staining
C. Acid fast staining
D. Flagella staining - CORRECT ANSWER-A. Endospore staining
A student in a lab has just completed an endospore stain of Bacillus anthracis and realized that
heat was not applied during the staining technique.
What will the student see upon microscopic examination of the slide?
A. Pink vegetative cells with clear round areas
B. Pink vegetative cells with green round areas
C. Blue vegetative cells with clear round areas
D. Blue vegetative cells with pink round areas - CORRECT ANSWER-A. Pink vegetative cells with
clear round areas.
A physician is given a vaginal swab in order to test for post-antibiotic vaginal infection.
Which microscopic technique would identify opportunistic fungal pathogen?
A. Wet mount stain
B. Flagella stain
