Crown gall disease in plants is caused by

Which of the following acts as a vector?

Which of the following methods are used for the analysis of Restriction Fragment Length Polymorphism $(RFLP)$?
$1$. Electrophoresis
$2$. Electroporation
$3$. Methylation
$4$. Restriction digestion

Identify the $DNA$ segment which is not a palindromic sequence.

Restriction endonuclease enzymes are used to:

What is the source of the $Ti$ (tumor-inducing) plasmid,which is modified and used as a cloning vector to deliver genes into plant cells?