Biology General Knowledge Questions and Answers for preparing - TopicsExpress

Biology General Knowledge Questions and Answers for preparing Examinations. Plant Hormones 1. Chemicals seen in plants which regulate growth and development? Answer: Phytohormones 2. Hormone promotes root initiation and cell elongation? Answer: Auxins 3. Apical dominance is due to which plant hormone? Answer: Auxins 4. Auxins were first isolated from? Answer: Human urine 5. Synthetic plant hormone used for the uniform flowering in pineapple? Answer: NAA and 2, 4-D 6. Dormancy breaking hormone? Answer: Gibberellins 7. Hormone for abscission? Answer: Abscisic Acid 8. Plant hormone help to induce cell division and cell elongation? Answer: Cytokinins 9. Plant hormone that controls Fruit ripening? Answer: Ethylene 10. A gas from plant hormone? Answer: Ethylene 11. Seed dormancy is due to? Answer: Abscisic Acid

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