Question

Assertion : Agrobacterium lumefaciens is popular in genetic engineering because this bacterium is associated with the roots of all cereal and pulse crops.
Reason : A gene incorporated in the bacterial chromosomal genome gets automatically transferred to the crop with which the bacterium is associated.

• A. If both Assertion and Reason are true and the reason is the correct explanation of the assertion.
• B. If both Assertion and Reason are true but the reason is not the correct explanation of the assertion.
• C. If Assertion is true statement but Reason is false.
• D. If both Assertion and Reason are false statements.

Answer 1

Answer: (D)

Agrobacterium tumefaciens infects certain plants in which $Ti$ plasmid (not chromosomal genome) causes the formation of tumour like growth called a crown gall. Agrobacterium does not infect grasses (i.e., cereals).