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NEET2012BiologyChapterActual

Assertion : Gibberellic acid increases length of grape stalks. Reason : Ethephon hastens fruit ripening in tomato and apple.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

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

Step-by-step solution

Assertion: Gibberellic acid increases the length of grape stalks. Gibberellins are plant growth regulators that increase the length of the axis, which promotes stalk elongation. This property is used commercially for plantation purposes. Reason: Ethephon hastens fruit ripening in tomatoes and apples. Ethephon is a plant growth regulator that promotes fruit ripening, abscission, flower induction, and other responses. It is a widely used compound as a source of ethylene. In aqueous solution, ethophon slowly releases

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