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Biology General Knowledge Questions and Answers for preparing Examinations.

Plant Hormones :-

#  Hormone promotes root initiation and cell elongation?
Answer: Auxins

#  Apical dominance is due to which plant hormone?
Answer: Auxins

#  Auxins were first isolated from?
Answer: Human urine

#  Synthetic plant hormone used for the uniform flowering in pineapple?
Answer: NAA and 2, 4-D

#  Dormancy breaking hormone?
Answer: Gibberellins

#  Hormone for abscission?
Answer: Abscisic Acid

#  Plant hormone help to induce cell division and cell elongation?
Answer: Cytokinins

#  Plant hormone that controls Fruit ripening?
Answer: Ethylene

#  A gas from plant hormone?
Answer: Ethylene

#  Seed dormancy is due to?
Answer: Abscisic Acid