試卷名稱:113年 - 113 國立臺灣大學_轉學生招生考試:普通植物學#125307
年份:113年
科目:研究所、轉學考(插大)◆普通植物學
22. If plants are kept in the dark, they have elongated internodes, making them spindly. This effect is due to:
(A)an overproduction of auxin.
(B) phytochrome in the Pr form.
(C)phytochrome in the Pfr form.
(D)an overproduction of gibberellins.
(E)a lower auxin/cytokinin ratio in the stems.