NEET Biology: Plant Pathology questions with solutions

Q1. Which fungal disease spreads by seed and flowers?

1. Loose smut of Wheat
2. Corn stunt
3. covered smut of Barley
4. Soft rot of Potato

Answer: Loose smut of Wheat

Loose smut of wheat is seed-borne: the fungus remains dormant in the embryo and later grows systemically, reaching the flowers and replacing grains with spores. The other options are not primarily spread by seed and flowers in this way.