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PLANT GROWTH AND MOVEMENTS
Question 46 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Dwarfness can be controlled by treating the plant with (2002, 1992)
cytokinin | |
gibberellic acid | |
auxin | |
antigibberellin |
Question 47 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Which one prevents photo-oxidation and pigment destruction? ..... [AIIMS 1997]
Phytochrome | |
Phytochormone | |
Phycocyanin | |
Phco-erythrin |
Question 48 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
What is the role of auxin? ..... [CMC 2003]
Prevents abscission of leaves and fruits | |
Promotes abscission of leaves and fruits | |
Promotes stomatal closure | |
Promotes dormancy |
Question 49 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
With reference to the diagram given below identify the incorrect statement:
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It is due to the habitation | |
Shows heterophyllous development due to environment | |
It is also called plasticity. | |
It shows the heterophyllous condition in Larkspur |
Question 50 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Seed dormancy is due to the .....
ethylene | |
abscisic acid | |
IAA | |
starch |
There are 50 questions to complete.