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 enhancement of the respiration rate of fruits thereby leading to its early ripening is ________ |
| A. | Auxin |
| B. | GA<sub>3</sub> |
| C. | Ethylene |
| D. | ABA |
| Answer» D. ABA | |
| 2. |
Which of the following hormone is used to induce morphogenesis in plant tissue culture? |
| A. | Cytokinins |
| B. | Ethylene |
| C. | Auxin |
| D. | ABA |
| Answer» B. Ethylene | |
| 3. |
Which of the following hormone is a stress hormone? |
| A. | Ethylene |
| B. | ABA |
| C. | Auxin |
| D. | GA |
| Answer» C. Auxin | |
| 4. |
The role of PGRs is a kind of intrinsic control. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
The source of hormone ethylene is________ |
| A. | oats |
| B. | ethephon |
| C. | coconut milk |
| D. | urine |
| Answer» C. coconut milk | |
| 6. |
The hormone antagonistic to ABA is_______ |
| A. | IAA |
| B. | Ethylene |
| C. | GA |
| D. | Kinetin |
| Answer» D. Kinetin | |
| 7. |
Richmond Lang effect is linked to ________ |
| A. | Cytokinins |
| B. | ABA |
| C. | GA |
| D. | NAA |
| Answer» B. ABA | |
| 8. |
The hormone responsible for femaleness in cucumbers is ________ |
| A. | IAA |
| B. | ABA |
| C. | GA |
| D. | Ethylene |
| Answer» E. | |
| 9. |
ABA is a derivative of adenine purine. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Which of the following is a gaseous hormone? |
| A. | Ethylene |
| B. | ABA |
| C. | GA |
| D. | Auxin |
| Answer» B. ABA | |