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Plant Growth And Development

Question
CBSEENBI11024928

Assertion: Cytokinins increases shelf life of fruits and vegetables.

Reason : Cytokinins induce cell division.

  • If both assertion and reason are true and reason is the correct explanation of assertion

  • If both assertion and reason are true but reason is not the correct explanation of assertion

  • If assertion is true but reason is false

  • If both assertion and reason are false

Solution

B.

If both assertion and reason are true but reason is not the correct explanation of assertion

Shelf life of cut shoots and flowers is prolonged by using the hormone cytokinin. The main reason is that the cytokinin increases retention of chlorophyll and delayed senescence in leaves. Cytokinin is essential for cell division or cytokinesis. It promotes cell division along with auxin by controlling the activity of cyclin dependent kinases.