PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoUnderstand the statement and analyse the answer based on the given reason:
1. Plant hormones:
| Assertion: | Plant hormones can be classified as 4 major classes. |
| Reason: | Auxins, cytokinins and gibberellins are the plant hormones that inhibit plant growth. |
2. Auxins
| Assertion: | Charles Darwin observed unilateral growth and curvature in the coleoptiles of canary grass. |
| Reason: | Darwin finally concluded that some ‘influence’ was transmitted from the tip of the coleoptile to the basal region |
3. Gibberellins and ethylene
| Assertion: | Bakanae disease was caused by fungus Gibberella fujikuroi. |
| Reason: | The active substance found in this fungus was known as Gibberellic acid. |
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