Microbes in Agriculture
Trending Questions
Q. Drawback(s) of using chemical pesticide and insecticide include:
- High cost
- It is specific
- It is non specific
- Causes pollution
Q. Which of the following is NOT correct about Bacillus thuringiensis?
- It can be sprayed on plants.
- It can kill insects.
- It can kill harmful bacteria.
- It's toxin has been genetically engineered.
Q. Biocontrol refers to the biological control of
- Crop quality
- Pests
- Weeds
- Yield
Q. Nitrogen is returned back to the atmosphere in the nitrogen cycle by the process of________.
- Nitrification
- Nitrogen fixation
- Ammonification
- Denitrification
Q. The use of biological methods for controlling plant diseases and pests is known as .
- insecticide
- pesticide
- herbicide
- biocontrol
Q.
Identify the advantage(s) of microbial biofertilisers.
Increase in nitrogen content of the soil.
It is eco-friendly.
Reduces the soil fertility.
Leads to health issues in animals.
Q. Which of the following statement/s hold true in case of Rhizobium?
- They live in the root nodules of leguminous crops.
- They help in the process of nitrogen fixation.
- They can reduce the dependency and expenses on fertilisers.
- They are oval cells and reproduce by budding.
Q. Bt brinjal variety is developed by using the gene isolated from _________________.
- Escherichia coli
- Lactobacillus acidophilus
- Bacillus thuringiensis
- Vibrio cholerae
Q. Which of the following is NOT a leguminous plant?
- Pea
- Horse gram
- Green gram
- Rice
Q. Probiotics are harmful bacteria that cause diseases.
- True
- False