Internodal segments of tobacco stems, the callus is actually

  1. An undifferentiated cell
  2. A mass of differentiated cell
  3. A mass of undifferentiated cell
  4. A differentiated cell
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Find the incorrect statement.

F. Skoog and his co-workers obeserved that
1. Callus proliferated only if Auxin is there
2. Callus proliferated only if Auxin + extracts of vascular tissue was there
3. Callus proliferated only if Auxin + Yeast extract was there
4. Callus proliferated only if Auxin + coconut milk/DNA was there

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Cytokinesis promoting substance was crystallised by

  1. Skoog and Darwin
  2. Skoog and Miller
  3. Kurosawa
  4. Cousins
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Kinetin term was used for …..by…

  1. Cytokinins, Darwin
  2. Cytokinin, Skoog And Miller
  3. ABA, Darwin
  4. ABA, F. Skoog
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Which of the following is not ABA?

  1. Inhibitor-B
  2. Abcission II
  3. Dormin
  4. Bakane
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Three independent researches reported which of the following PGR?

  1. ABA
  2. Ethylene
  3. Auxin
  4. Cytokinin
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During mid 1960s, the purification and chemical characterisation of which of the following PGR was performed?

  1. ABA
  2. GA
  3. Auxin
  4. Cytokinins
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Cousins confirmed the release of a volatile substance from ripened oranges that

  1. Hastened the ripening of already ripened bananas
  2. Hastened the ripening of unripened banana
  3. Slowed the ripening of unripened bananas
  4. Slowed the ripening of oranges
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Auxein means

  1. To escape
  2. To slow
  3. To grow
  4. To fasten
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Auxins was first isolated from

  1. Human serum
  2. Human urine
  3. Human stool
  4. Human saliva
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