MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not a common symptom of plant disease? |
| A. | Necrosis |
| B. | Leaf curls |
| C. | Perfect flowering |
| D. | Chlorosis |
| Answer» D. Chlorosis | |
| 2. |
Which of the following is not true regarding Chlorosis? |
| A. | Yellowing of leaves |
| B. | Death of plant tissues |
| C. | Non-formation of chlorophyll |
| D. | Destruction of chlorophyll |
| Answer» C. Non-formation of chlorophyll | |
| 3. |
Wilting is the loss of turgidity and drooping of leaves. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Which of the following is not related to Rots? |
| A. | Discolouration of tissue |
| B. | Degeneration of succulent tissue |
| C. | Distortion of leaves |
| D. | It is of two types |
| Answer» D. It is of two types | |
| 5. |
Necrosis cannot be in the form of _________ |
| A. | Lesions |
| B. | Scabs |
| C. | Cankers |
| D. | Rots |
| Answer» E. | |
| 6. |
Which of the following is not related to Necrosis? |
| A. | Curling of leaves |
| B. | Death of tissues |
| C. | A common symptom of fungal diseases |
| D. | Discolouration of leaves |
| Answer» B. Death of tissues | |
| 7. |
Plant diseases are broadly classified into nonparasitic and parasitic. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of the following is not a method of reducing total biomass of crop? |
| A. | Damage to leaf tissues |
| B. | Studying the crop |
| C. | Killing branches |
| D. | Stunting effect |
| Answer» C. Killing branches | |
| 9. |
Which of the following is not a method of the perpetuation of disease by the pathogen? |
| A. | The entry of pathogen through natural openings |
| B. | Reproduction by pathogen |
| C. | Reducing the quantity of yield |
| D. | Direct penetration of the pathogen |
| Answer» D. Direct penetration of the pathogen | |
| 10. |
Which of the following is not a method by which pathogens affect the yield of crops? |
| A. | Reduce the quantity of yield |
| B. | Reduce the quality of crop produce |
| C. | Increase in cost production |
| D. | Increase the flowering period |
| Answer» E. | |