Plant Growth and Development Quiz | Plant Growth and Development Multiple Choice Questions with Answers

61 Leaf abscission is prevented by
[A] Gibberellin
[B] Ethylene
[C] Abscisic acid
[D] Auxin
Answer: Auxin
62 Hormone involved in the formation of winter Buds is
[A] GA
[B] CK
[C] ABA
[D] Ethylene
Answer: ABA

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63 Agent Orange of Vietnam War was
[A] 2,4,5-T
[B] 2,4-D
[C] NAA
[D] Mixture of 1 and 2
Answer: Mixture of 1 and 2
64 Growth of a shoot or a root involves
[A] Cell enlargement
[B] Cell division
[C] Cell differentiation
[D] All the above
Answer: All the above
65 Apical dominance is due to
[A] C/N ratio
[B] Photoperiodism
[C] Phototropism
[D] Auxin cytokinin balance
Answer: Auxin cytokinin balance

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