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Gene Transfer in Plants

Gene Transfer in Plants
On Ti-plasmid T-region or T-DNA is flanked by a direct repeat of

12 bp
30 bp
20 bp
25 bp

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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)
α-hydroxy syringone
Acetosyringone
None of these

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Gene Transfer in Plants
Microinjection involves

All of these
injection of large amount of DNA
injection with needle having diameter greater than cell diameter
injection of DNA into bigger cells

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Gene Transfer in Plants
Virulence trait of Agrobacterium tumefaciens is borne on

tumour inducing plasmid DNA
chromosomal DNA
cryptic plasmid DNA
both chromosomal and plasmid DNA

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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
none of these
the vector plasmid

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Gene Transfer in Plants
In response to the activating signal molecule, an endonuclease is produced that causes nicks in the T-DNA. It is encoded by

vir A
vir B
vir C
vir D

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