A protoplast is a cell:
1. Without plasma membrane
2. Without nucleus
3. Undergoing division
4. Without cell wall
Which of the following enhances or induces the fusion of protoplasts?
In vitro clonal propagation in plants is characterized by:
1. PCR and RAPD
2. Northern blotting
3. Electrophoresis and HPLC
4. Microscopy
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 |
1. | genetically uniform population identical to the original parent |
2. | homozygous diploid plants |
3. | development of new species |
4. | variants through picking up somaclonal variations |
1. | The pattern of development of a somatic embryo is comparable to that of a zygotic embryo |
2. | Somatic embryos can develop from microspores |
3. | Somatic embryo is induced usually by an auxin such as 2, 4–D |
4. | A somatic embryo develops from a somatic cell |
Which part would be most suitable for raising virus-free plants for micro propagation?
1. Bark
2. Vascular tissue
3. Meristem
4. Node
Somaclones are obtained by:
1. tissue culture
2. plant breeding
3. irradiation
4. genetic engineering
Polyethene glycol method is used for:
1. gene transfer without a vector
2. biodiesel production
3. seedless fruit production
4. energy production from sewage
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