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Gene Transfer in Plants

Gene Transfer in Plants
Integrated octopine T DNA occurs as

four segments
two segments
single segment
three segments

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Gene Transfer in Plants
Which of the following are used as selection marker for the cells transformed with Agrobacterium?

Streptomycin phosphotransferase
any of the above
Neomycin phosphotransferase
Hygromycin phosphotransferase

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Gene Transfer in Plants
Intermediate vectors containing T-DNA are conjugation deficient. Thus conjugation is mediated in presence of which of the following plasmid?

pRN 3
none of these
either (a) or (b)
pRK 2013

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Gene Transfer in Plants
Co-integrating transformation vectors must include a region of homology in

the Ti-plasmid
between vector plasmid and Ti-plasmid
the vector plasmid
none of these

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Gene Transfer in Plants
Opine synthesis is the property

determined by the bacteria Agrobacterium tumefaciens
conferred to plant cells when it transformed by Agrobacterium tumefaciens
both (a) and (b)
of normal plant cells

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Gene Transfer in Plants
Which of the following is true about Agrobacterium tumefaciens?

It infects gymosperms
It causes crown gall disease of plants
All of these
It infects dicotyledonous angiosperms

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