Tag: environmental protection
Questions Related to environmental protection
Identify the set which has all organisms used in biological control of pests.
Which is not a mycoherbicide?
Select the correct statements out of (a - d)
(a) Single celled Spirulina can produce large quantities of food rich in protein, minerals and vitamins
(b) Body weight-wise the microorganism Methyliphilus methylotrophus produces several times more protein than a cow per day
(c) Button Mushroom is a rich source of vitamin C
(d) A rice variety has been developed which is very rich in calcium
An earliest natural bioinsecticide of chinese origin is ________________.
Match the items in column 'A' and column 'B' and choose correct answer.
Column A | Column B |
---|---|
(i) Lady bird | (A) Methanobacterium |
(ii) Mycorrhiza | (B) Trichodema |
(iii) Biological control | (C) Aphids |
(iv) Biogas | (D) Glomus |
The correct answer is:
Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein
Bt toxin kills insect by
Bt toxin genes have been expressed in plants in order to provide resistance against
(i) Lepidopterans and fungi
(ii) Animals and bacteria
(iii) Bacteria and fungi
(iv) Coleopterance and dipterans
(v) Lepidopterans
Bt toxin protein crystals present in bacterium Bacillus thuringiensis, do not kill the bacteria themselves because
The free-living fungus Trichoderma can be used for: