The Ti plasmid is frequently used in plant tr | vedclass

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(D) The $Ti$ plasmid (Tumor-inducing plasmid) is a circular $DNA$ molecule found in the soil bacterium $Agrobacterium$ $tumefaciens$.This bacterium ha

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$Agrobacterium$

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(D) The $Ti$ plasmid (Tumor-inducing plasmid) is a circular $DNA$ molecule found in the soil bacterium $Agrobacterium$ $tumefaciens$.This bacterium has the natural ability to transfer a portion of its $DNA$,known as $T$-$DNA$,into the genome of infected plant cells,causing crown gall disease.Due to this unique property,scientists use the $Ti$ plasmid as a vector to deliver foreign genes into plant cells for genetic engineering and crop improvement.Therefore,the correct answer is $Agrobacterium$.

$(a)$ Restriction endonuclease	$(i)$ Joins the $DNA$ fragments
$(b)$ Restriction exonuclease	$(ii)$ Extends primers on genomic $DNA$ template
$(c)$ $DNA$ ligase	$(iii)$ Cuts $DNA$ at specific positions
$(d)$ $Taq$ polymerase	$(iv)$ Removes nucleotides from the ends of $DNA$

The $Ti$ plasmid is frequently used in plant transformation. This plasmid is found in .......

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