What is the difference between a breed and a species? Give an example for each category.

Is there any relationship between dedifferentiation and the higher degree of success achieved in plant tissue culture experiments?

“Give me a living cell of any plant and I will give you a thousand plants of the same type” Is this only a slogan or is it scientifically possible? Write your comments and justify them.

Plants raised through tissue cultures are clones of the ‘parent’ plant. Discuss the utility of these plants.

Discuss the importance of testing of new plant varieties in a geographically vast country like India.