Multiple choice

Which of the following sentences about auxins is incorrect?

  1. Auxins promote root initiation.

  2. Auxins induce the formation and organisation of phloem and xylem.

  3. Auxins are required for fruit growth and development, and they delay fruit senescence.

  4. Auxins promotes abscission and cause early formation of abscission layer.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Auxins inhibit abscission prior to formation of abscission layer. Thus, they inhibit senescence of leaves.

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