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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. does not affect mature monocotyledonous plants.
  2. can help in cell division in grasses, to produce growth.
  3. promotes apical dominance.
  4. promotes abscission of mature leaves only.

Correct answer · Option 1

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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