Somaclones are obtained by:
1. tissue culture
2. plant breeding
3. irradiation
4. genetic engineering
Which one of the following is commonly used in the transfer of foreign DNA into crop plants?
1. Trichoderma harzianum
2. Meloidogyne incognita
3. Agro bacterium tumefaciens
4. Penicillium expansum
What is true about Bt toxin?
1. | the inactive protoxin gets converted into active form in the insect gut |
2. | Bt protein exists as active toxin in the Bacillus |
3. | The activated toxin enters the ovaries of the pest to sterilize it and thus prevent its multiplication |
4. | the concerned Bacillus has antitoxins |
Polyethene glycol method is used for:
1. gene transfer without a vector
2. biodiesel production
3. seedless fruit production
4. energy production from sewage
Transgenic plants are:
1. | produced by a somatic embryo in artificial medium |
2. | generated by introducing foreign DNA into a cell and regenerating a plant from that cell |
3. | Produced after protoplast fusion in artificial medium |
4. | grown in artificial medium after hybridization in the field |
1. | Flavr savr tomatoes |
2. | Starlink maize |
3. | Bt soybean |
4. | Golden rice |
1. | eliminate weeds from the field without the use of manual layout |
2. | eliminate weeds from the field without the use of herbicides |
3. | encourage eco-friendly herbicides |
4. | reduce herbicide accumulation in food particles for health safety |
1. Escherichia
2. Mycobacterium
3. Rhizobium
4. Saccharomyces
1. | mosquitoes | 2. | flies |
3. | nematodes | 4. | bollworms |
1. | A cell displaying a foreign antigen used for the synthesis of antigens. |
2. | Production of somaclonal variants in tissue cultures. |
3. | When a piece of RNA that is complementary in sequence is used to stop the expression of a specific gene |
4. | RNpolymerase-producingng DNA |