Ernest Chain and Howard Florey’s contribution was
1. Discovery of streptokinase.
2. Establishment of potential of penicillin as effective drug.
3. Discovery of DNA sequences.
4. Isolating the bacterial plasmid.
Conversion of milk to curd improves its nutritional value by increasing the amount of
1. Vitamin D
2. Vitamin A
3. Vitamin
4. Vitamin E
Which of the following alcoholic drinks are produced by distillation of the fermented broth:
1. Beer and wine
2. Whisky, brandy, rum
3. Beer and rum
4. Wine and brandy
A major component of gobar gas is :
1. Butane
2. Ammonia
3. Methane
4. Ethane
Which of the following is not used as a biofertilizers :
1. Rhizobium
2. Fungi-Glomus
3. Cyano bacteria
4. Yeast
Which of the following is one of the most significant discoveries of the twentieth century that greatly contributed towards the welfare of human society?
1. Biogas
2. Curd
3. Penicillin
4. Citric acid
Assertion : Dragonflies are useful to get rid of mosquitoes
Reason : Baculoviruses are pathogens that attack insects and other arthropods.
Blood-cholesterol lowering agent is and produced by
1. Statins, Monascus purpureus
2. Statins, Trichoderma polysporum
3. Cyclosporin A, Streptococcus
4. Streptokinase, Streptococcus
During secondary treatment, major part of activated sludge is pumped into tanks called
1. Aerobic sludge digesters.
2. Anaerobic sludge digesters.
3. Primary sludge digesters.
4. Settling tanks.
To obtain microbial product at industrial scale which equipment is used.
1. Auto clave.
2. Fermentors.
3. Laminar flow.
4. Phytotron.