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Gene Transfer in Plants

Gene Transfer in Plants
T-DNA transfer and processing into plant genome requires products of which of the following genes?

vir D,E
vir G,C
All of these
vir A,B

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

all of these
conjugative transfer
tumour formation
enzymes for agropine biosynthesis

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Gene Transfer in Plants
Opines that are present in crown gall tumour include

agropine
all of these
octopine
nopaline

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Gene Transfer in Plants
The size of the virulent plasmid of Agrobacterium tumefaciens is

80-120 kb
40-80 kb
>235 kb
140-235 kb

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

tumour formation
enzymes for agropine biosynthesis
conjugative transfer
all of these

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Gene Transfer in Plants
Which of the following is not true about the helper plasmids?

These help in the mediating conjugation of intermediate vectors
These can replicate in Agrobacterium
All of these
These can't replicate in Agrobacterium

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