A) Statement A is correct and B is wrong.
B) Statement B is correct and A is wrong.
C) Both statements A and B are correct.
D) Both statements A and B are wrong.
Correct Answer: C
Solution :
: Agrobacterium tumefaciens is a rod shaped, nm Gram \[-ve\] soil bacterium which causes crown gall disease in over 140 species of dicots but it does not infect cereals. The bacterium contains tumour inducing plasmid (Ti plasmid) which integrates a segment of its DNA (T-DNA) into little DNA of its host plant thereby inducing formation of cancerous growth called crown gall tumour usually at graft or bud union, on roots and lower stem. The bacterium can enter the Plant only through wounds (grafting or budding scars by and mechanical injuries of crown and roots cultivation equipments.)
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