Which of the Following Is Not True of Auxin

question 4

Multiple Choice

Which of the following is not true of auxin?

• A) Auxin functions as a diffusible extracellular signaling factor
• B) It establishes the apical-basal axis
• C) It is actively transported from the basal cell into the apical cell
• D) The concentration gradient of auxin is necessary for specifying different cell fates

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