A technique of micropropagation is  
1. Somatic hybridization  
2. Somatic embryogenesis
3. Protoplast fusion
4. Embryo rescue 

Surface sterilization of explants and their transfer to culture media must be done under:
1. Aseptic conditions
2. Antiseptic conditions
3. Aerobic conditions
4. Anaerobic conditions

Differentiation of shoot in tissue culture is controlled by
1. High auxin :cytokinin ratio
2. High cytokinin : auxin ratio
3. High gibberellin : auxin ratio
4. High gibberellin :cytokinin ratio

Which one of the following is a case of wrong matching
1. Somatic hybridization - Fusion of two diverse cells
2. Vector DNA -Site for t-RNA synthesis
3. Micropropagation- In vitro production of plants in large numbers
4. Callus - Unorganised mass of cell produced in tissue culture

To obtain virus - free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken ?
1. Apical meristem only
2. Palisade parenchyma
3. Both apical and axillary meristems
4. Epidermis only

Somaclones are obtained by  
1. Genetic engineering
2. Tissue culture
3. Plant breeding
4. Irradiation 

The technique of obtaining large number of plantlets through tissue culture is
1. Micropropagation
2. Macropropagation
3. Organ culture
4. Plantlet culture

In order to obtain virus-free plants through tissue culture the best method is                  
1. protoplast culture
2. embryo rescue
3. anther culture
4. meristem culture 

Which part would be most suitable for raising virus free plants for micropropagation?             
1. Meristem
2. Node
3. Bark
4. Vascular tissue