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In paddy fields biological nitrogen fixation is chiefly brought byCorrectIncorrect
During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded?CorrectIncorrect
Bacillus thuringiensis (Bt) strains have been used for designing novelCorrectIncorrect
Genetic diversity in agricultural crops is threatened by:CorrectIncorrect
A hybrid where the cytoplasm of two parent cells are fused by retaining only one parental nucleus is calledCorrectIncorrect
Pollution from animal excreta and organic waste from kitchen can be most profitably minimized byCorrectIncorrect
Study the followings related to uses of plants and identify the correct match for the sorghum and cotton respectively.
I. Blood purification and organic fertilizer.
II. Animal feed and paper industry
III. ‘B’ Vitamin and cosmetics.
IV. Explosives and organic fertilizer.
The correct pair is:CorrectIncorrect
Study the following lists:
List – I List – II (A) Usage of bisexual flowers as female parents (I) Clonal selection (B) Incorporation of several desirable characters into a single variety (II) Pure line selection (C) Exploiting hybrid vigour for many generations (III) Emasculation (D) Improving local varieties of self pollinated crop (IV) Hybridization (V) Polyploidy breedingCorrectIncorrect
A nitrogen fixing microbe associated with Azolla in rice fields isCorrectIncorrect
Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition?CorrectIncorrect