Q. No.A technique of micropropagation is
1. Somatic hybridization
2. Somatic embryogenesis
3. Protoplast fusion
4. Embryo rescue
1. Somatic hybridization
2. Somatic embryogenesis
3. Protoplast fusion
4. Embryo rescue
A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called
1. Ley farming
2. Contour farming
3. Strip farming
4. Shifting agriculture
Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids?
1. Mangur
2. Mrigala
3. Mackerel
4. Mystus
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
Interspecific hybridization is the mating of
1. more closely related individuals within same breed for 4-6 generations
2. animals within same breed without having common ancestors
3. two different related species
4. superior males and females of different breeds
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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.
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Select the incorrect statement regarding inbreeding:
| 1. | Inbreeding helps in elimination of deleterious alleles from the population |
| 2. | Inbreeding is necessary to evolve a pure-line in any animal |
| 3. | Continued inbreeding reduces fertility and leads to inbreeding depression. |
| 4. | Inbreeding depression cannot be overcome by out-crossing. |
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Which part would be most suitable for raising virus free plants for micropropagation?
1. Meristem
2. Node
3. Bark
4. Vascular tissue
Consider the following statements (a-d) about organic farming
a. Utilizes genetically modified crops like Bt cotton.
b. Uses only naturally produced inputs like compost.
c. Does not use pesticides and urea.
d. Produces vegetables rich in vitamins and minerals.
Which of the above statements are correct?
1. (a) and (b) only
2. (b), (c) and (d)
3. (c) and (d) only
4. (b) and (c) only
A collection of plants and seeds having diverse alleles of all the genes of a crop is called
1. Genome
2. Herbarium
3. Germplasm
4. Gene library
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