A person feels extremely thirsty, drinks large amount of water,feels tired and weak, these are symptoms of

A complex polysaccharide produced from sucrose by the bacterium Leuconostuc mesenteroides is

Insulin is secreted by

Cultivation of Bt- cotton has been much in the news. The prefix Bt- means

Bacillus anthracis causes anthrax disease, and was first proved by

Streptomycin and actinomycin were discovered by

Robert Hooke discovered the existence of cell in

The origin of biotechnology dates back to