Gene Transfer in Plants
Crown gall tissue

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

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Gene Transfer in Plants
Advantage of microprojectile method over microinjection method for gene transfer in plants include

All of these
method is universal in its application irrespective of all shape, size, type and presence or absence of cell wall
intact cells are used
gene can be transferred to many cells simultaneously

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