Plant hormones can work in pairs, with one hormone promoting a phenomenon and another inhibiting it. In the following list of plant hormones, the hormone named first stimulates and the second, inhibits. Which pair has opposing effects on senescence?
A) Cytokinin and abscisic acid
B) Ethylene and cytokinin
C) Auxin and gibberellins
D) Ethylene and auxin
E) Brassinosteroids and auxin
Correct Answer:
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A) retards leaf senescence.
B) production is decreased
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