Outbreeding is an important stategy of animal husbandry because it
(a) help in accumulation of superior genes
(b) is useful in producing purelines of animals
(c) is useful in overcoming inbreeding depression 
(d) exposes harmful recessive genes that are eliminated by selection

Concept Questions :-

Animal Husbandry
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A technique of micropropagation is

(a) Somatic hybridisation

(b) Somatic embryogenesis

(c) Protoplast fusion

(d) Embryo rescue

Concept Questions :-

Plant Tissue Culture
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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

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In vitro clonal propogation in plants characterised by

(a) PCR and RAPD

(b) Northen blotting

(c) Electrophoresis and HPLC

(d) Microscopy

Concept Questions :-

Plant Tissue Culture
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An alga which can be employed as food for human being is

(a) Ulothrix

(b) Chlorella

(c) Spirogyra

(d) Polysiphonia

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To obtain virus-free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?

(a) Apical meristem only

(b) Palisade parenchyma

(c) Both apical and axillary meristems

(d) Epidermis only

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In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called

(a) selection of superion recombinations

(b) cross-hybridisation among the selected parents

(c) evaluation and selection of parents

(d) germplasm collection

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

(a) Bark

(b) Vascular tissue

(c) Meristem

(d) Node

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Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin-A deficiency ?

(a) Flaver savr tomato

(b) Canolla

(c) Golden rice

(d) Bt-brinjal

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'Jaya', and 'Ratna', developed for green revolution in India are the varieties of

(a) rice

(b) wheat 

(c) bajra

(d) maize

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