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NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice

Phytochrome is involved in

Options

  1. Aphototropism.
  2. Bphotorespiration.
  3. Cphotoperiodism.
  4. Dgeotropism.

Correct answer

C. photoperiodism.

Step-by-step solution

Phytochrome is a photoreceptor molecule which mediates several developmental and morphogenetic responses of plants to light. This is called photoperiodism. Borthwick, Hendicks and Parker in 1952, discovered phytochrome, which is a pigment that received light and existed in two inter convertible forms: active form and inactive form, Pr and Pfr.

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