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प्रश्न
Gibberellins are synthesised from ______.
विकल्प
Acetic acid
Mevalonic acid
Tryptophan
Ethephon
उत्तर
Gibberellins are synthesised from Mevalonic acid
संबंधित प्रश्न
Match the items in column A with those of column B.
| Column A | Column B | ||
| (a) | Auxin | (i) | apical dominance |
| (b) | Gibberellin | (ii) | cell-division |
| (c) | Cytokinin | (iii) | fruit ripening |
| (d) | Ethylene | (iv) | internodal elongation |
Multiple choice question.
Abscisic acid controls ______.
Multiple choice question.
How many molecules of ATP are required to fix one molecule of nitrogen?
A farmer is fed up of weeds in his Wheat farm. Which of the following chemicals he can use to overcome the problem?
Buyers often complain that a particular fruit merchant uses some chemical to ripen fruits in his shop.
Name the chemical he must be using to do so.
Write the name of Hormone that can overcome the requirement of vernalization.
Which hormone causes Bakanae disease of rice?
Match the following lists and select the correct option.
| List I | List II | ||
| i. | 2,4-D | a. | Promotes senescence and ripening of fruits |
| ii. | ABA | b. | DelaysJeaf senescence |
| iii. | Gibberellins | c. | Increases the length of the sugarcane stem |
| iv. | Ethylene | d. | Kills dicotyledonous weeds without affecting mature monocotyledonous plants |
| e. | Stimulates the closure of stomata |
IAA stands for ______.
A plant growth inhibitor hormone which causes wilting of leaves is ______.
