試題詳解

66. How does the fass mutation in Arabidopsis result in a stubby plant rather than a normal elongated one?
(A) Meristem identity genes produce defective transcription factors, resulting in a stubby shoot.
(B) Juvenile nodes retain their juvenile status and elongated cells do not develop.
(C) The cell's pattern of migration in the apical meristem is disrupted.
(D) Lack of formation of the preprophase band results in random planes of cell division.
(E) Cellulose microfibrils in the cell wall do not form, resulting in a shorter plant.