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Gene Transfer in Plants

Gene Transfer in Plants
Integrated octopine T DNA occurs as

three segments
four segments
two segments
single segment

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

conjugative transfer
tumour formation
all of these
enzymes for agropine biosynthesis

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Gene Transfer in Plants
Which of the following plant signal molecules regulate the expression of vir B, C, D and E in case of tobacco?

Both (a) and (b)
None of these
α-hydroxy syringone
Acetosyringone

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Gene Transfer in Plants
Which of the following is not true about the direct repeats flanking T-DNA?

These repeats are transferred intact to the plant genome
All of these
They are conserved between nopaline and octopine Ti-plasmids
These are important in integration mechanism

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Gene Transfer in Plants
Agrobacterium tumefaciens is a

a fungi
a yeast
gram (-) bacteria
gram (+) bacteria

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

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

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