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. |
The hormone responsible for flowering is ________ |
| A. | vernalin |
| B. | cytokinin |
| C. | ABA |
| D. | florigen |
| Answer» E. | |
| 2. |
Which is the site for perception of light/dark duration? |
| A. | Leaves |
| B. | Stem |
| C. | Roots |
| D. | Apical bud |
| Answer» B. Stem | |
| 3. |
Statement A: Response of plants to low temperature is regulated by a hypothetical hormone. Statement B: Response of plants to different periods of light is also regulated by a hypothetical hormone. |
| A. | Both the statements are true |
| B. | Both the statements are false |
| C. | Statement A is true but Statement B is false |
| D. | Statement B is true but Statement A is false |
| Answer» B. Both the statements are false | |
| 4. |
Duration of light period is more important than the duration of dark period. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Statement A: Vernalisation prevents precocious reproductive development. Statement B: Vernalisation promotes flowering by cold treatment. |
| A. | Both the statements are true |
| B. | Both the statements are false |
| C. | Statement A is true but Statement B is false |
| D. | Statement B is true but Statement A is false |
| Answer» B. Both the statements are false | |
| 6. |
Statement A: Short day plants required more exposure to light than the critical duration. Statement B: Long day plants required less exposure to light than the critical duration. |
| A. | Both the statements are true |
| B. | Both the statements are false |
| C. | Statement A is true but Statement B is false |
| D. | Statement B is true but Statement A is false |
| Answer» C. Statement A is true but Statement B is false | |
| 7. |
Which of the following plants is a polycarpic plant? |
| A. | Sugarbeet |
| B. | Cabbage |
| C. | Carrots |
| D. | Apple |
| Answer» E. | |
| 8. |
Statement A: Critical duration is different for different plants. Statement B: The plants which are dependent on critical duration are called day-neutral plants. |
| A. | Both the statements are true |
| B. | Both the statements are false |
| C. | Statement A is true but Statement B is false |
| D. | Statement B is true but Statement A is false |
| Answer» D. Statement B is true but Statement A is false | |
| 9. |
Plants are able to measure the duration of exposure to light. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Which of the crops doesn t show vernalisation? |
| A. | Wheat |
| B. | Barley |
| C. | Rice |
| D. | Rye |
| Answer» D. Rye | |