Which is **NOT** correctly paired (hormone–physiological role)?
AAuxin — apical dominance, cell elongation
BGibberellin — stem elongation, bolting in rosette plants, breaking seed dormancy
CCytokinin — cell division, delaying senescence
DABA — fruit ripening (a job actually done by ethylene)
Answer & Solution
Correct answer: D. ABA — fruit ripening (a job actually done by ethylene)
ABA does NOT cause fruit ripening — that's **ethylene's** role. ABA induces stomatal closure, seed dormancy and abscission. Easy confusion: ABA has 'abscisic' in its name (formerly thought to cause abscission too, but mostly ethylene-driven).
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