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Biology · PYQ NEET UG 2024

हिन्दी

Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin

  1. A
    does not affect mature monocotyledonous plants.
  2. B
    can help in cell division in grasses, to produce growth.
  3. C
    promotes apical dominance.
  4. D
    promotes abscission of mature leaves only.
View Answer & Solution

Correct answer · Option A

does not affect mature monocotyledonous plants.

Explanation

Synthetic auxins like 2,4-D act as selective herbicides that kill broad-leaved dicot weeds but do not affect mature monocotyledonous plants like grasses.
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