Plant Hormones (GATE)
| Description: Proteins | |
| Number of Questions: 15 | |
| Created by: Palash Sundaram | |
| Tags: Auxins gibberellins cytokinins ethylent Mechanism of Action and Physiological effects of Plant Growth Regulators |
Paclobutrazol is a plant growth retardant which is antagonist against
In yang cycle, which enzyme is responsible for conversion of S-adenosyl L-methionine to 1-amino cyclopropane carboxylate, that on simple oxidation, yields ethylene?
Ethylene induces flowering in
Which of the following changes is induced by auxins in roots?
Polyamines are strongly basic hormones with low molecular weight that have been found in all organisms studied so far. What role do they play?
Gibberellins signal starch hydrolysis and break seed dormancy. Which enzyme production is induced by gibberellins to initiate this function?
Which of the following process is stimulated if auxin concentration is higher then cytokinin concentration?
Which of the following sentences are in accordance with direct inhibition hypothesis?
In the process of seed germination, abscisic acid acts antagonistically to
Which pathway is used for gibberellin biosynthesis?
In which hormone's biosynthesis pathway is adenosine phosphate-isopentenyltransferase involved?
What is the primary action of brassinosteroids?
Which of the following is not an effect produced by abscisic acid in plants?
Pyrabactin (a pyridyl-containing ABA activator) is a naphthalene sulphonamide hypocotyl cell expansion inhibitor. Which of the following sentences are true with respect to pyrabactin?
Gibberellins were first recognised by Elichi Kurosawa while studying