Gene Transfer in Plants
Microprojectile method of gene transfer in plants involves delivery of DNA

with the help of micromanipulator
with the help of bolistics
any of the above
with the help of needles

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Gene Transfer in Plants
Crown gall tissue

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

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