Biotechnology

Question: Media composition for the production of streptomycin is
[A].

soybean meal, glucose, peptone, malt extract, sodium chloride

[B].

soybean meal, glucose, peptone, malt extract, ammonium chloride

[C].

soybean meal, glucose, peptone, malt extract, calcium carbonate

[D].

soybean meal, glucose, peptone, malt extract, ammonium sulphate

Answer: Option A

Explanation:

No answer description available for this question.

Question: Fermentation medium for oxytetracyclin (terramycin) consist of
[A].

CSL, starch, (NH4)2 SO4, sodium chloride and CaCO3

[B].

CSL, (NH4)2 SO4, sodium chloride and CaCO3

[C].

CSL, starch,(NH4)2 SO4, ammonium chloride and CaCO3

[D].

CSL,(NH4)2 SO4, ammonium chloride and CaCO3

Answer: Option A

Explanation:

No answer description available for this question.

Question: Chlorotetracyclin is soluble in
[A].

organic solvents

[B].

water

[C].

ether

[D].

all of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: Media used for the production of chlorotetracyclin consists of
[A].

sugar, corn steep liquor, CaCO3, (NH4)2SO4 and NH4 Cl

[B].

corn steep liquor, CaCO3 and (NH4)2SO4

[C].

sugar, CaCO3 and (NH4)2SO4

[D].

corn steep liquor, CaCO3, (NH4)2SO4 and NH4 Cl

Answer: Option A

Explanation:

No answer description available for this question.

Question: Which of the following organism(s) produce(s) tetracycline?
[A].

Steptomyces aureofaciens

[B].

Steptomyces ramosus

[C].

Nocardia sulphurea

[D].

All of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Penicillin is recovered after fermentation as
[A].

potassium penicillin

[B].

calcium penicillin

[C].

sodium penicillin

[D].

penicillin only

Answer: Option A

Explanation:

No answer description available for this question.

Question: At acidic pH, penicillin remains in
[A].

aqueous phase

[B].

solvent phase

[C].

both (a) and (b)

[D].

precipitates

Answer: Option B

Explanation:

No answer description available for this question.

Question: At normal pH, penicillin remains in
[A].

aqueous phase

[B].

solvent phase

[C].

both (a) and (b)

[D].

precipitates

Answer: Option A

Explanation:

No answer description available for this question.

Question: During which phase of growth of Penicillium chrysogenum maximum antibiotic production takes place
[A].

during the first phase

[B].

during the second phase

[C].

during the third phase

[D].

same in all the phases

Answer: Option B

Explanation:

No answer description available for this question.