Gene Transfer in Plants
The left segment of octopine T-DNA (TL) is necessary for

all of these
conjugative transfer
tumour formation
enzymes for agropine biosynthesis

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Gene Transfer in Plants
In a plant tumour cell

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

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Gene Transfer in Plants
Crown gall tissue

both (a) and (b)
retains tumorous properties when cultivated
shows tumorous properties only in presence of bacteria
can be cultivated in vitro in absence of bacteria

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