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Pre-Test
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1
Which of the following stages of plant development produces ethylene gas?
A)Fruit ripening
B)Seedling growth
C)Flower development
D)1 and 2
E)1, 2 and 3
2
Which one of the following is not an important plant hormone?
A)Auxins
B)Brassinosteroids
C)Ethylene
D)Cytokinins
E)CDPKs
3
Which of the following is not an effect of auxin?
A)Mediates phototropism
B)Apical-basal polarity of seed embryos
C)Vascular tissue differentiation
D)Stimulation of fruit development
E)All of the choices are auxin effects.





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