01
Choose one
1 point
A team measures enzyme activity in engineered microorganisms. Which control would help check that the assay signal is low when the enzyme is absent?
Free Practice Quiz Question List
10 Biotechnology Projects and Case Studies Online Quiz Questions
Use this free practice quiz with 20 questions to review 10 Biotechnology Projects and Case Studies, test your knowledge, and prepare for your next test or exam.
20 questions
02
Written response
1 point
In the microbial enzyme project, which outcome did the team measure separately from enzyme activity?
03
Fill in the blank
1 point
The case lists product identity, purity, potency, and safety. In that order, the quality immediately after identity is .
04
True or false
1 point
True or false: If sequence analysis finds a genetic variant associated with a disease-related trait, that association alone establishes that the variant causes the trait.
- A
True
- B
False
05
Written response
1 point
When interpreting a modified-cell functional response, name one confounder category identified in the case study.
06
Choose one
1 point
A team confirms the intended genetic construct in an engineered microorganism using sequence analysis. What conclusion is justified by that result alone?
- A
It proves that the enzyme is produced and functions in the cell.
- B
It can confirm the intended construct is present, but does not by itself establish enzyme production or function.
- C
It establishes that the engineered strain will be economically viable at industrial scale.
07
Fill in the blank
1 point
Strong performance in a small culture is an early indicator, not proof of readiness.
08
Choose one
1 point
Why should a team use independent biological replicates when comparing engineered and control strains?
- A
They help estimate natural variation among independent biological samples.
- B
They eliminate the need to check whether the assay works as expected.
- C
They are repeated measurements of a single sample and improve only instrument calibration.
09
Choose all
1 point
A team is using human genomic data. Select all actions consistent with responsible data stewardship.
- A
Follow the consent terms and data-use conditions that apply to the dataset.
- B
Attempt to identify participants if direct identifiers have been removed.
- C
Protect controlled-access data.
- D
Avoid attempts to identify participants.
10
True or false
1 point
True or false: If modified cells show a stronger functional response than controls, that result alone establishes that the cell product is safe and clinically beneficial.
- A
True
- B
False
11
Choose all
1 point
A team is planning a comparison of several engineered microbial strains. Select all choices that would strengthen the experimental design.
- A
Compare the engineered strain with an appropriate unmodified or empty-vector control.
- B
Plan independent biological replicates.
- C
Change multiple genetic and culture factors without a plan to separate their effects.
- D
Record the genetic design and culture conditions for each sample.
12
Open ended
1 point
A strain performs well in a small culture. Explain why that result does not by itself establish that the strain is ready for industrial production, and identify at least two scale-up changes the team should consider.
13
True or false
1 point
True or false: Repeated measurements of one biological sample can improve measurement precision, but they do not replace independent biological replicates.
- A
True
- B
False
14
Choose one
1 point
A team measures enzyme activity in an engineered microorganism. What result should it expect from a no-enzyme background control when the assay is behaving as intended?
- A
It should produce a signal similar to the engineered strain, confirming high enzyme activity.
- B
It should produce a low signal, indicating little background activity.
- C
It should show the highest signal, confirming that the assay can detect enzyme.
- D
Its signal is irrelevant if the engineered strain grows.
15
Choose one
1 point
Sequence analysis confirms that an intended genetic construct is present in an engineered microorganism. What conclusion is justified by this result alone?
- A
That the enzyme is produced at a high level.
- B
That the enzyme functions in the manufacturing process.
- C
That the intended construct is present, but not whether the enzyme is produced or functions as intended.
- D
That the engineered strain will remain productive at industrial scale.
16
Written response
1 point
In the illustrative enzyme data, engineered strain B has a mean activity of 22 arbitrary units and the control has a mean activity of 10 arbitrary units. What is the increase in mean activity for strain B?
17
Written response
1 point
What are repeated measurements of the same sample, used to improve measurement precision, called?
18
Choose one
1 point
When comparing engineered strains for a manufacturing process, how should a team decide whether to report enzyme activity per culture volume or per unit biomass?
- A
Determine whether activity per culture volume or per unit biomass best matches the intended process.
- B
Always rank strains by activity per unit biomass, regardless of the product process.
- C
Select the strain with the highest activity value and disregard growth.
- D
Use sequence confirmation instead of an enzyme activity measurement.
19
Choose one
1 point
A modified cell product shows a stronger disease-related functional response than control cells. What is the most justified interpretation?
- A
It establishes that the modified cells are safe for patients.
- B
It proves clinical benefit if the functional outcome was defined in advance.
- C
It makes product identity, purity, and potency evidence unnecessary.
- D
It supports further investigation but does not by itself establish safety or clinical benefit.
20
Choose one
1 point
A bioinformatics analysis finds that a genetic variant is associated with a disease-related trait. Which conclusion is warranted by the association alone?
- A
The variant has been shown to cause the trait because it is associated with it.
- B
The association does not by itself establish that the variant causes the trait.
- C
The variant is clinically useful whenever the analysis is reproducible.
- D
The observed association proves that the sample groups had no relevant differences.