問題詳情

27. The transduction pathway that activates systemic acquired resistance in plants is initially signaled by _____.
(A) antisense RNA
(B) Pfr phytochrome
(C) salicylic acid
(D) abscisic acid
(E) red, but not far-red, light

參考答案

答案:C
難度:適中0.64
統計:A(0),B(4),C(16),D(1),E(1)

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