MCQ
ABA acts antagonistic to:
- AEthylene.
- BCytokinin.
- CGibberlic acid.
- DIAA.
Explanation:
Abscisic acid is an antagonist to gibberellins as shown in the table given.
| Abscisic Acid | Gibberellic acid |
| It inhibits Growth. | It promotes growth. |
| It promotes the dormancy of seeds, buds and tubers. | It overcomes the natural dormacy of seeds, tubers, etc. |
| It inhibits the synthesis of RNA and proteins. | IT promotes the synthesis of RNA and Proteins. |
| causes abscission of flowers and fruits. | Promotes development of fruits. |
| Promotes leaf senescence. | Prevents leaf Senescence. |
| Promotes stomatal closure. | Promotes stomatal opening. |
| Prevents anylase Activity. | Promotes anylase activity during seed Germination. |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(I)$ It is located on the dorsal side of forebrain.
$(II)$ It plays very important role in the regulation of $24$ hour rhythum of our body.
$(III)$ It helps in maintaining the body temperature
$(IV)$ It's hormone, influences the metabolism as well as defense capability.