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Antibiotics

Antibiotics
Streptomycin is produced by

S. ramosus
S. griseus
S. aerofaciens
S. griseoflavus

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Antibiotics
Penicillin is recovered after fermentation as

potassium penicillin
penicillin only
sodium penicillin
calcium penicillin

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Antibiotics
Inoculum preparation for the fermentation medium for penicillin takes place on

wheat seeds
barley seeds
all of these
rice seeds

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Antibiotics
Which of the following event occurs during third phase of growth of P chrysogenum?

Concentration of antibiotic increases in the medium
All of these
Autolysis of the medium starts
Slight rise in pH due to liberation of ammonia

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Antibiotics
The yield of the antibiotic depends upon

composition of the medium
pH of the medium
all of these
age of the inoculum

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Antibiotics
Which of the following organism(s) produce(s) tetracycline?

Nocardia sulphurea
Steptomyces ramosus
All of these
Steptomyces aureofaciens

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