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Biotechnology and Biomedical Engineering Microbiology Virtual Lab II Experiments

Aim

Theory

Pretest

Procedure

Simulation

Posttest

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Bacteriophage Plaque Assay for Phage Titer

Choose difficulty:

Beginner

Intermediate

Advanced

1. A bacteriophage is ____________

a: virus that infects a bacterium Explanation

Explanation

b: bacterium that infects a virus Explanation

Explanation

c: bacterium Explanation

Explanation

d: virus Explanation

Explanation

2. For a valid pahge count, the number of plaques per plate should be

a: More than 300 Explanation

Explanation

b: Less than 30 Explanation

Explanation

c: In between 30-300 Explanation

Explanation

d: None of the above Explanation

Explanation

3. A plaque assay detects the number of __________

a: Bacterial auxotrophs Explanation

Explanation

b: Dental cavities Explanation

Explanation

c: Bacterial viruses Explanation

Explanation

d: Bacterial prototrophs Explanation

Explanation

4. Forty-eight (48) plaques were counted in a plate when 0.1 ml of bacteriophage-infected bacteria from 10¯⁶ dilution (10 ml culture) was plated. The original bacteriophage density was:

a: 4.8 X 10⁶ Explanation

Explanation

b: 48 X 10¯⁶ Explanation

Explanation

c: 4.8X 10¯ ⁷ Explanation

Explanation

d: 48 X 10⁷ Explanation

Explanation

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