An example of a plant with a tuberous root that is used to propagate the plant is the

• A. Sweet potato
• B. Carrot
• C. Potato
• D. Onion

Answer: (A)

Tuberous roots are thickened roots that store nutrients and can give rise to new shoots for propagation. Sweet potato stores energy in its tuberous roots, and those roots can produce slips—the shoots that, once rooted, grow into new plants. That makes it a classic example of vegetative propagation using a tuberous root.

Carrot is a true root and isn’t used to propagate the plant. Onion forms a bulb, not a tuberous root. Potato forms a tuber, but that tuber is a swollen stem, not a tuberous root, and propagation is typically discussed in terms of planting seed potatoes rather than using a tuberous root.