The wavelength of light absorbed by Pr form of phytochrome is :
Correct answer: A. 660 nm
- A. 660 nm
- B. 720 nm
- C. 620 nm
- D. 640 nm
Explanation
Phytochrome is the photoreceptor pigment that controls flowering. It has two forms as Pr and Pfr. Pr is bluish phytochrome and it absorbs light at 660 to 680 nm of wavelength. P fr is (far red) yellowish green and absorbs light at 730 nm of wavelength.
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