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Special Proteins and Crop Improvement

Special Proteins and Crop Improvement
Which of the following mutant/(s) has/have increased amount of lysine and/or methionine in corn seeds?

Opaque-2
Sugary-1
All of these
Flory-2

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Special Proteins and Crop Improvement
The hybrid embryo can be rescued from damage/collapse by growing it

in artificial medium
at low water activity
at low temperature
at low pH

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Special Proteins and Crop Improvement
Somaclonal variation method refers to

heritable changes
large number of plant cells
small number of species having limited commercial potential
genetic isolation

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Special Proteins and Crop Improvement
Which of the following have been used for cryo-preservation of germplasm with 90% tissue survival and 10%plant regeneration that are used in international exchange of germplasm?

Both (a) and (b)
Embryo cultures supplemented with GA3 and coconut milk
Meristem tip cultures
Embryo cultures

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Special Proteins and Crop Improvement
Which of the following govern sporophytic self-incompatibility in Brassica?

Triticum
Aegilops
Both (a) and (b)
S alleles

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Special Proteins and Crop Improvement
Protoplast fusion technique generally involves

isolation and fusion
hybridization between two species
isolation, fusion and culturing
isolation only

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