Experimental removal of the auxin source demonstrates that leaf abscission is _______ by auxin, and apical dominance is _______ by auxin.
A) promoted; also promoted
B) inhibited; also inhibited
C) promoted; inhibited
D) inhibited; promoted
E) promoted; unaffected

Question

Quizplus · Accepted Answer

The word "demonstrates" in the sentence indicates that the answer can be inferred from the information presented. The experimental removal of the auxin source would result in a decrease in auxin levels, which would in turn result in leaf abscission being promoted (inhibited by auxin) and apical dominance being reduced (promoted by auxin). Therefore, option D is the correct answer.

Experimental Removal of the Auxin Source Demonstrates That Leaf Abscission