Microbes in Agriculture

Q. The use of biological methods for controlling plant diseases and pests is known as .

1. insecticide
2. pesticide
3. herbicide
4. biocontrol

Q.

Rhizobium is present in

1. Soil

2. Root nodules of legumes

3. Stem nodules

4. Tumours of leaf

Q. The bacterium $\underset{–}{{}^{\prime }{X}^{\prime }}$ is involved in the fixation of nitrogen in leguminous plants. Here, $\underset{–}{{}^{\prime }{\text{X}}^{\prime }}$ is

जीवाणु $\underset{–}{{}^{\prime }{\text{X}}^{\prime }}$, फलीदार पादपों में नाइट्रोजन का स्थिरीकरण करता है। यहाँ $\underset{–}{{}^{\prime }{\text{X}}^{\prime }}$ है

1. Rhizobium
   
   राइजोबियम
   
2. Bacillus anthracis
   
   बैसिलस एन्थ्रेसिस
   
3. Lactobacillus
   
   लैक्टोबैसिलस
   
4. Yeast
   
   यीस्ट
   

Q.

Select the wrong statement

1. Human insulin is being commercially produced from a transgenic species of Escherichia coli

2. Genetically modified Bacillus thuringiensis is used as biopesticide on commercial scale

3. Human protein, antitrypsin, is used to treat emphysema

4. Bt toxin CRY genes IAC control corn borer