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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
25 bp
20 bp

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Gene Transfer in Plants
Integrated octopine T DNA occurs as

three segments
two segments
single segment
four segments

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Gene Transfer in Plants
Integrated nopaline T-DNA occurs as

single segment
three segments
two segments
four segments

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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
These are important in integration mechanism
All of these
They are conserved between nopaline and octopine Ti-plasmids

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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 B
vir D
vir C
vir A

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

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

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