The best plant explant to raise virus free plant is:

1. embryo
2. vessels
3. meristem
4. Leaf

To obtain a virus free plant, what can be used as an explant in micropropogation ?

In plants, somatic embryo regeneration is induced usually by a relatively high concentration of:

1. Benzyl amino purine

2. IAA

3. 2,4 - D

4. NAA

Meristem culture is especially important to obtain: 

1. Drought resistant plants

2. Virus free plants

3. Biofortified plants

4. Androgenic haploids

A technique of micropropagation is

1. Somatic hybridisation

2. Somatic embryogenesis

3. Protoplast fusion

4. Embryo rescue

Which of the following enhances or induces fusion of protoplasts?

1. Sodium chloride and potassium chloride

2. Polyethylene glycol and sodium nitrate

3. IAA and kinetin

4. IAA and gibberellins

In vitro clonal propogation in plants characterised by

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

Which part would be most suitable for raising virus-free plants for micropropagation?

Somaclones are obtained by

1. tissue culture

2. plant breeding

3. irradiation

4. genetic engineering