The best method to obtain virus-free plants through tissue culture is .....

Exchange of germplasm is carried preferably through shoot tip culture because they are

Plants,in comparison to animals,are more rapidly manipulated by genetic engineering. Select the most probable reason for this.

What is protoplast fusion?

In order to obtain virus-free plants through tissue culture, the best method is:

In tissue culture experiments using tobacco callus,it was observed that when the culture medium contains $2 \ ppm$ of $IAA$ and $2 \ ppm$ of kinetin,an undifferentiated mass of callus is produced. If the ratio of kinetin to $IAA$ is increased,what will happen?