311. Which one of the following is an exotic Indian fish ?

A Catla catla
B Heteropneustes fossilis
C Cyprinus carpio
D Labeo rohita
Answer :   Cyprinus carpio
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312. Which one of the following plant is commonly used as green manure

A Acacia nilotica
B Cassia fistula
C Crotalaria juncea
D Azadiracta
Answer :   Crotalaria juncea
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313. Streptomycin resistance gene is transferred from Nicotiana tabacum to Nicotiana silvestrise by which method

A Somatic embryogenesis
B Embryo culture
C Cybridisation
D Somatic hybridisation
Answer :   Cybridisation
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314. Azolla increases rice productivity due to its associations with

A Rhizobium
B Nostoc
C Anabaena
D Frakia
Answer :   Anabaena
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315. Haploids from anther culture were first obtained in

A Brassica
B Gossypium
C Nicotiana
D Datura
Answer :   Datura
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316. Domestication of silk worm is called

A Sericulture
B Pisciculture
C Apiculture
D Horticulture
Answer :   Sericulture
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317. Lathyrism which is caused by consumption of Khesari dal is a disease characterised by

A reproductive failure, susceptibility to diabetes mellitus and skeletal abnormalities
B retardation of body growth, precocious puberty and renal dysfunction
C mental retardation, delay in the onset of puberty and cardiovascular abnormalities
D gross skeletal deformation and thinning of collagen fibres and fibrils
Answer :   gross skeletal deformation and thinning of collagen fibres and fibrils
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318. Which one of the following species yield edible oil and fibre

A Cocos nucifera
B Brassica campestris
C Mangifera indica
D Arachis hypogea
Answer :   Cocos nucifera
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319. The world's highly prized wool yielding 'Pashmina' breed is

A goat
B sheep
C goat-sheep cross
D Kashmir sheep-Afghan sheep cross
Answer :   goat
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320. Potato got resistance to phytopthora infestans from

A Solanum demissum
B Solanum acaule
C Solanum spegazzini
D Solanum stoloniferum
Answer :   Solanum demissum
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