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Class 12 Biology Practice Test: Food Production Strategies - Plant Diseases caused by Viruses and Bacteria
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Class 12 Biology Practice Test: Food Production Strategies - Plant Diseases caused by Viruses and Bacteria
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12 Questions

1. Which of the following is not a symptom of Bean Mosaic disease?
2. Common symptoms of viral infection in plants are local lesions and ring spots.
3. Which of the following is not a method by which viral infection spreads in plants?
4. Which of the following is not a bacterial plant pathogen?
5. Which of the following group of viruses generally attack plants?
6. Which of the following is not a method by which a virus enters a healthy host?
7. Bacteria spread from infected plants to healthy plants only by air currents.
8. Which of the following is not a common measure of controlling viral infections?
9. Which of the following is not a symptom of bacterial diseases in plants?
10. Which of the following is not a method of controlling bacterial diseases in plants?
11. Which of the following organism causes Bean Mosaic Disease in plants?
12. Which of the following is not a method of overcoming the infection of Bean mosaic disease?

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