Course

Microbiology

Study Pack

Set 12 Microbial Biotechnology

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Question 1

(Multiple Choice)

Free
How do fed batch reactors maximize cell density,and therefore product yield?

A)By providing a growth-limiting nutrient over time.
B)By maximizing cell growth rate.
C)By supplying excess essential vitamins.
D)By providing excess oxygen for growth.
E)By maintaining an anaerobic environment.

Answer

Question 2

(Multiple Choice)

Free
Why is a beta galactosidase fusion protein produced as part of recombinant insulin production?

A)To increase the biological activity of the protein.
B)To increase overall expression of the cloned gene.
C)To facilitate the purification of the A chain recombinant protein.
D)To facilitate the purification of the B chain recombinant protein.
E)To facilitate the purification of theA and B chain recombinant proteins.

Answer

Question 3

(Multiple Choice)

Free
Statins work to reduce cholesterol levels in humans by:

A)competitively inhibiting HMG-coA reductaseenzyme
B)non-competitively inhibiting HMG-coA reductaseenzyme
C)preventing transcription of HMG-coA reductasemRNA
D)preventing translation of HMG-coA reductaseenzyme
E)activating HMG-coA reductaseenzyme

Answer