Streptomycin is prepared from
Streptomyces antibioticus
Streptomyces nodosus
Streptomyces griseus
Streptomyces rimosus
First antibiotic was discovered by
Robert Koch
Louis Pasteur
Alexander Fleming
None of these
Fermentation ability of Yeast is due to
amylase
galactase
zymase
invertase
Which of the following is not a component of downstream processing?
Separation
Purification
Preservation
Expression
Pasteurisation is
heating of liquid 65°C
heating of liquid between 65 - 80°C followed by rapid cooling
heating of solids at 65°C
Genetically engineered microorganism used successfully in bioremediation of oil spills is
Trichoderma
Xanthomonas
Bacillus
Pseudomonas
A technique of deliberate manipulation of genes/ transfer of gene to a different organism is
gene therapy
tissue culture
hybridoma technology
genetic engineering
Stirred-tank bioreactors have been designed for:
purification of product
addition of preservatives to the product
availability of oxygen throughout the process
ensuring anaerobic conditions in the culture vessel
Human insulin is being commercially produced from a transgenic species of
Escherichia
Mycobacterium
Rhizobium
Saccharomyces
The DNA fragments separated on an agarose gel can be visualised after staining with
bromophenol blue
acetocarmine
aniline blue
ethidium bromide
