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 Multiple Choice QuestionsMultiple Choice Questions

71.

Leprosy is also called as

  • Hansen's disease

  • sarcoma

  • slim disease

  • leukamia


72.

A simple technology has been developed in India for plant breeders and farmers to use two plants as biofertilizers for growing rice. These are

  • Azotobacter and Rhizobium

  • Chlorella and Spirulina

  • Azolla and nitrogen fixing blue-green algae

  • Riccia and Marchantia


73.

Yeast is used in the production of :

  • acetic acid

  • citric acid

  • ethyl alcohol

  • curd


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74.

Streptomycin was isolated first time by :

  • A. Flemming

  • Robert Koch

  • N. Borlaug

  • S. Waksman


D.

S. Waksman

Streptomycin was first isolated by S. Waksman from Streptomyces griseus in 1944.

Robert Koch discovered anthrax causing bacterium.

Alexander Flemming discovered Penicillin (first antibiotic).

N. Borlaug is known as the Father of Green Revolution.


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75.

Which of the following micro-organism is used for conversion of milk into curd?

  • Xanthomonas citri

  • Bacillus megatherium

  • Acetobacter aceti

  • None of the above


76.

Which of the following is the product of glucose fermentation by yeast?

  • C6H12O6

  • C2H5OH

  • (C6H10O5)n

  • CH2OH


77.

The pesticide used as preventive measure in buildings is :

  • aldrin

  • dieldrin

  • endrin

  • DDT


78.

Cheese and yogurt are the products of

  • dehydration

  • fermentation

  • pasteurization

  • distillation


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79.

Curdling of milk in small intestine occurs due to the action of

  • rennin

  • erypsine

  • trypsin

  • chymotrypsin


80.

Which of the following pesticides is an acetylcholinesterase inhibitor?

  • Aldrin

  • BHC

  • Endosulfan

  • Malathion


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