Q. Consider the following statements I. A soil inhabiting plant bacterium, $Agrobacterium\ tumefaciens$, a pathogen of several dicot plants is able to transfer a piece of DNA known as T-DNA II. The T-DNA causes tumours III. Tumour formation induced by Ti-plasmid Which of the statements given above are correct?
A) I and II
B) I and III
C) II and III
D) I, II and III
Explanation
Agrobacterium tumefaciens (soil inhabiting plant bacterium) is a pathogen of several dicot plants. It delivers a piece of DNA known as ‘T-DNA’ in the Ti-plasmid which transforms normal plant cells into tumour cells to produce chemicals against pathogens
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.