Question

A tissue of tobacco plant infected with TMV was used to obtain a new plant.Identify the techniques used & reason out the possibility of obtaining a new healthy plant

Answer 1

The technique used is plant tissue culture. The reason that an infected plant can't be used to obtain a new healthy plant is that the meristematic cells of the plant are taken from the shoot tip as the infections do not reach there. A complete plant can then be obtained from those cells by the method of plant tissue culture.