Biotechnology

Penicillin is produced by

by
Question: Penicillin is produced by
[A].

aerobic fermentation

[B].

anaerobic fermentation

[C].

aerobic fermentation followed by anaerobic fermentation

[D].

anaerobic fermentation followed by aerobic fermentation

Answer: Option A

Explanation:

No answer description available for this question.

Antibiotics are typically produced in fed batch reactors because

by
Question: Antibiotics are typically produced in fed batch reactors because
[A].

antibiotic yields are generally higher when cells enter the stationary phase

[B].

the precursors are often toxic to the cells

[C].

antibiotic yields are generally higher when cell growth slows

[D].

All of the above

Answer: Option D

Explanation:

No answer description available for this question.

During the growth of animal cells in culture, it is noticed that the cells do not look very healthy. After an investigation, this is found that there is a lot of lactic acid in the culture fluid. What is probably wrong with this culture?

by
Question: During the growth of animal cells in culture, it is noticed that the cells do not look very healthy. After an investigation, this is found that there is a lot of lactic acid in the culture fluid. What is probably wrong with this culture?
[A].

Ethyl alcohol is being produced in excess

[B].

The cells have too much oxygen

[C].

Glycolysis is being inhibited

[D].

The cells do not have enough oxygen

Answer: Option D

Explanation:

No answer description available for this question.

In animal cell culture, particularly mammalian cell culture, transformation means

by
Question: In animal cell culture, particularly mammalian cell culture, transformation means
[A].

uptake of new genetic material

[B].

phenotypic modifications of cells in culture

[C].

both (a) and (b)

[D].

release of genetic information

Answer: Option B

Explanation:

No answer description available for this question.

According to Eagle, the growth of L-strain and Hela-strain cultures require to have mandatory presence of

by
Question: According to Eagle, the growth of L-strain and Hela-strain cultures require to have mandatory presence of
[A].

6 amino acids

[B].

8 amino acids

[C].

10 amino acids

[D].

12 amino acids

Answer: Option D

Explanation:

No answer description available for this question.

For culturing, plasma from the adult chicken is preferred to mammalian plasma because

by
Question: For culturing, plasma from the adult chicken is preferred to mammalian plasma because
[A].

it forms a clear and solid coagulum even after dilution

[B].

it is too opaque

[C].

it doesn’t produce solid clots

[D].

it forms a semi solid coagulum

Answer: Option A

Explanation:

No answer description available for this question.