Question No:1
Spraying of Gibberellins over sugarcane can increase the yield by how much?
[A] 20 tonnes/acre
[B] 20 kg/acre
[C] 20 quintet/acre
[D] None
Question No:2
What change does it bring hi juvenile conifers when sprayed with GAs?
[A] hastens maturity period
[B] hastens germination period
[C] hastens dormancy period
[D] None
Question No:3
Spraying of GAs on juvenile conifers causes
[A] early flowering
[B] early germination
[C] early seed production
[D] all
Question No:4
Cytokinins have specific effects on
[A] cytokinesis
[B] cytokinesis
[C] cytoketosis
[D] cytolysis
Question No:5
In what form cytokinins were discovered?
[A] Terpenes
[B] Toluenes
[C] Kinetin
[D] None
Question No:6
Gibberellins promoters bolting in which plants?
[A] Beet
[B] Cabbage
[C] Both
[D] None
Question No:7
Kinetin is _____
[A] Cytokinins
[B] Modified form of adenine
[C] Purine
[D] All
Question No:8
Kinetin was first discovered from
[A] corn-kernels
[B] autoclaved herring sperm DNA
[C] coconut milk
[D] all
Question No:9
Naturally kinetin occurs in
[A] coconut milk
[B] pineapple
[C] corn
[D] none
Question No:10
Naturally available cytokinin—like substance is
[A] kinetin
[B] zeatin
[C] both
[D] none
Question No:11
Zeatin was isolated from what?
[A] corn-kernels
[B] coconut milk
[C] both
[D] none
Question No:12
Where are natural cytokinins synthesized?
[A] Areas of rapid cell division
[B] Areas undergoing differentiation
[C] Both
[D] None
Question No:13
Where are natural cytokinins synthesized?
[A] Root apices
[B] Young fruits
[C] Developing shoot buds
[D] All
Question No:14
How many of the following PGR help to overcome apical dominance? Auxins, Gibberellins, Cytokinins, Ethylene
[A] 1
[B] 2
[C] 3
[D] 4
Question No:15
How many of the following PGRs help in delay of senescence? Auxins, Gibberellins, Cytokinins, Ethylene
[A] 1
[B] 2
[C] 3
[D] 4
Plant Growth and Development Mock Exam-10
CategoriesNEET Biology