Which of the following diseases is caused by a protozoan?
Outbreeding is an important strategy of animal husbandry because it
1. Exposes harmful recessive genes that are eliminated by selection.
2. Helps in accumulation of superior genes.
3. Is useful in producing purelines of animals.
4. Is useful in overcoming inbreeding depression
Which one of the following is viral disease of poultry?
4. New Castle disease
In cloning of cattle a fertilized egg is taken out of the mother’s womb and
1. From this upto eight identical twins can be produced
2. The egg is divided into four pairs of cells which are implanted into the womb of others cows
3. In the eight cell stage, cells are separated and cultured until small embryos are formed which are implanted into the womb of other cows
4. In the eight cell stage the individual cells are separated under electrical field for further development in culture media
The causative agent of mad-cow disease is a
The world’s highly prized wool yielding ‘Pashmina’ breed is
3. Goat-sheep cross
4. Kashmir sheep-Afghan sheep cross
The term aquaculture means
1. Inland fisheries
2. Culture fishery only
3. Marine fisheries
4. Both (1) & (3)
Mating of more closely related individuals within the same breed for 4-6 generation is
2. Interspecific breeding
4. Cross breeding
Fishery is an industry devoted
1. To the catching of fishes
2. To the catching and processing of fishes and shell fishes
3. To the catching, processing and selling of fishes, shell fishes, crabs, prawns etc.
4. All of these
Which of the following types of bees intimate source of food to other workers by dancing movements?
2. Scout bees
3. Nurse bees
4. Queen bees
Which one is wrongly matched?
1. Apiculture – Honey bee only
2. Aquaculture – Fish only
3. Sericulture – Silk moth only
4. Poultry – Ducks
Three carp fishes, Catla, Labeo and Cirrhina, can be grown together in the same pond more economically, as they have
1. Positive interactions
4. No competition for food
Out-crossing, cross-breeding and interspecific hybridization are included in
3. Inbreeding depression
4. Farm management
Which of the following animal diseases is caused by a virus?
3. Tick fever
Shahtoosh, the king of wools is obtained from
2. Kashmiri goat
3. Merino sheep
A technique of micropropagation is
1. Embryo rescue
2. Somatic hybridization
3. Somatic embryogenesis
4. Protoplast fusion
Which of the following enhances or induces fusion of protoplasts?
1. IAA and gibberellins
2. Sodium chloride and potassium chloride
3. Polyethylene glycol and sodium nitrate
4. IAA and kinetin
In vitro clonal propagation in plants is characterized by
1. PCR and RAPD
2. Northern blotting
3. Electrophoresis and HPLC
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
An alga which can be employed as food for human being is
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. Cross-hybridisation among the selected parents
2. Evaluation and selection of parents
3. Germplasm collection
4. Selection of superior recombinants
Which one of the following is a case of wrong matching ?
1. Micropropagation-In vitro production of plants in large numbers
2. Callus–Unorganised mass of cells produced in tissue culture
3. Somatic hybridization - Fusion of two diverse cells
4. Vector DNA-Site for t-RNA synthesis
Green revolution in India occurred during
1. 1960 's
Consider the following four statements (a-d) and select the option which includes all the correct ones only
(a) Single cell Spirulina can produce large quantities of food rich in protein, minerals, vitamins etc.
(b) Body weight-wise the micro-organism Methylophilus methylotrophus may be able to produce several times more proteins than the cows per day
(c) Common button mushrooms are a very rich source of vitamin C.
(d) A rice variety has been developed which is very rich in calcium.
1. Statements (c), (d)
2. Statements (a), (c) and (d)
3. Statements (b), (c) and (d)
4. Statements (a), (b)
Mutations can be induced with
1. Gamma radiations
2. Infra Red radiations
'Himgiri' developed by hybridisation and selection for disease resistance against rust pathogens is a variety of
"Jaya" and "Ratna developed for green revolution in India are the varieties of
A collection of plants and seeds having diverse alleles of all the genes of a crop is called
4. Gene library
Breeding of crops with high levels of minerals, vitamins and proteins is called
2. Somatic hybridisation
Which of the following plant species you would select for the production of bioethanol?
1. Zea mays
Which one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide?
1. Black rust of wheat
2. Bacterial leaf blight of rice
3. Downy mildew of grapes
4. Loose smut of wheat
In maize, hybrid vigour is exploited by
1. Inducing mutations
2. Bombarding the seeds with DNA
3. Crossing of two inbred parental lines.
4. Harvesting seeds from the most productive plants
Crop plants grown in monoculture are
1. Low in yield
2. Free from intraspecific competition
3. Characterised by poor root system
4. Highly prone to pests