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प्रश्न
Name any genetically modified crop.
Name a genetically modified crop.
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उत्तर
Bt cotton.
APPEARS IN
संबंधित प्रश्न
With the help of a neat and labelled diagram explain VAM (vesicular arbuscular mycorrhizae).
Trichoderma konigi is a source of _______ enzyme.
(A) invertase
(B) lipase
(C) pectinase
(D) cellulase
How do organic farmers control pests?
Name and explain the type of interaction that exists in mycorrhizae and between cattle egret and cattle.
State the medicinal value and the bioactive molecules produced by Streptococcus, Monascus and Trichoderma.
Given below is a list of six micro-organisms. State their usefulness to humans.
- Nucleopolyhedrovirus
- Saccharomyces cerevisiae
- Monascus purpureus
- Trichoderma polysporum
- Penicillium notatum
- Propionibacterium sharmanii
Name the type of association that the genus Glomus exhibits with higher plants.
What is VAM?
Why are baculoviruses considered good biocontrol agents?
Give an example of a bacterium, a fungus and an insect that are used as biocontrol agents.
Why are the spores of Bacillus thuringiensis used as bioinsecticide?
Write a note on biocontrol agents.
Select the odd one from given herbicides.
What is mycorrhiza?
Match the column A with B and rewrite correct pairs
| A | B | |
| I | Mycoherbicides | Cactoblastis |
| II | Bacterial herbicides | Alternaria |
| III | Insects as herbicides | Xanthomonas |
Which of the following is TRUE regarding Bacillus thuringiensis?
Which of the following is the INCORRECT statement with respect to biocontrol agents?
Identify the INCORRECT statement regarding Bacillus thuringiensis.
Which of the following is the INCORRECT statement?
Which group features jointed appendages?
Many members of genus Glomus form a mycorrhizal association with plants. Elaborate how is this association beneficial to the plants.
Nucleopolyhedrovirus do not show ______.
- Give an example of a genus of virus used as narrow spectrum insecticidal biocontrol agent.
- How does its use serve as an aid in overall integrated pest management programme?
A farmer grew 2 varieties of corn crops in fields A and B. He grew normal corn crops in field A and GM corn crops in field B. He observed corn borers attacked only in field A. To control it, spores of Bt were sprayed in field A.
- Name the gene in the spores responsible for the control of this pest.
- What effect will the spores of Bt have on the insect pest?
- How has field B developed resistance against this pest?
Define bioherbicides.
Explain how Bacillus thuringiensis acts as a bio-control agent.
Protozoan like Nosema locustae is used for controlling the target pests like ______.
