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Gene Transfer in Plants

Gene Transfer in Plants
The transfer of intermediate vectors into Agrobacterium are brought about by

transduction
transformation
biparental mating
triparental mating

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

all of these
tumour formation
enzymes for agropine biosynthesis
conjugative transfer

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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?

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

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

Neomycin phosphotransferase
Hygromycin phosphotransferase
any of the above
Streptomycin phosphotransferase

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Gene Transfer in Plants
Agrobacterium tumefaciens is a

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

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

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

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