The crops engineered for glyphosate are resistant/tolerant to
(1) fungi
(2) bacteria
(3) insects
(4) herbicides
Homozygous purelines in cattle can be obtained by
(1) mating of related individuals of same breed
(2) mating of unrelated individuals of same breed
(3) mating of individuals of different breed
(4) mating of individuals of different species
Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids?
(1) Mystus
(2) Mangur
(3) Mrigala
(4) Mackerel
A system of rotating crops with legume or grass pasture to improve soil structure and
fertility is called
1. contour farming
2. strip farming
3. shifting agriculture
4. ley farming
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
1. PCR and RAPD
2. Northen 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
In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called
1. selection of superior recombinations
2. cross-hybridisation among the selected parents
3. evaluation and selection of parents
4. germplasm collection
Which part would be most suitable for raising virus-free plants for micropropagation?
1. | Bark | 2. | Vascular tissue |
3. | Meristem | 4. | Node |