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ANTIBIOTICS

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

All of these
Steptomyces aureofaciens
Steptomyces ramosus
Nocardia sulphurea

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Antibiotics
Media used for the production of chlorotetracyclin consists of

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

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Antibiotics
Which of the following precursor is added in the medium to get penicillin G?

Phenyl carbamic acid
Phenyl acetic acid
Ammonium chloride
Ammonium sulphate

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Antibiotics
High yield of chlorotetracyclin requires

no aeration
controlled aeration
continuous aeration
aeration which does not affect the yield

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Antibiotics
Streptomycin is produced by

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

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