Gene Transfer in Plants
Which of the following plant signal molecules regulate the expression of vir B, C, D and E in case of tobacco?

Both (a) and (b)
α-hydroxy syringone
Acetosyringone
None of these

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Gene Transfer in Plants
In a plant tumour cell

only a small specific segment of callus T DNA is incorporated
complete Ti plasmid is incorporated in plant nuclear DNA
may vary from plant to plant
different parts of the Ti-plasmid are incorporated

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