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Special Proteins and Crop Improvement

Special Proteins and Crop Improvement
Which of the following transfers a set of genes encoded in a region called T-DNA of the Ti-plasmid into cells at wound positions?

L. birsutum
L. peruvianum
A. tumefaciens
A. sterilis

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Special Proteins and Crop Improvement
Cultivated tomato species (Lycopersicon esculentum) is highly susceptible to

L. peruviaanum
Meloidogyne spp. nematodes
both (a) and (b)
Solarium melongena

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Special Proteins and Crop Improvement
When the transposon jumps into an otherwise functional gene, it has the effect of

propagating correct transcription
initiating some genetic codes
initiating correct transcription
blocking correct transcription

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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
Meristem tip cultures
Embryo cultures supplemented with GA3 and coconut milk

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Special Proteins and Crop Improvement
The tumor phenotype, which can be maintained indefinitely in tissue culture, results from the expression of genes on the

m-RNA
T-DNA
c-DNA
r-DNA

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

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

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