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Biology CBSE Live product
Class 10 (2025-26)
Control and coordination
Revision I - Control and coordination
10.
Plant hormones - I
Question:
3
m.
1.
Which of the following breaks the dormancy of seeds?
NAA
Ethylene
IAA
GA
2.
Abscisic acid induces _______.
stomatal closure
blooming
nodal elongation
cell division
3.
Which of the following is a hypothetical hormone?
Auxin
Cytokinin
Florigen
Ethylene
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