Replacement of purine with another purine base is known as

Solution (By Examveda Team)

The replacement of purine with another purine base is known as Transition.
Transition is the substitution of a purine from another purine base or pyrimidine from another pyrimidine (C⟷T or A⟷G).
A transition is a DNA point mutation that substitutes one purine for another or one pyrimidine for another, all other point mutations are called transversion.