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The pigment responsible for flower induction is
A. Carotene
B. Riboflavin
C. Phytochrome
D. Xanthophyll

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Hint: Flower production is based on photoperiod.

Complete answer: Pigments are coloured substances or chemicals which help conduct various processes and pathways.
These are present in different parts of an organism. In plants, they take part in photosynthesis and sometimes in flower production too.

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Carotenes: These are red-orange carotenoid pigments found in plants, fruits and colourful vegetables. It is a photosynthetic pigment which does not contain oxygen atoms. The common form is beta-carotene.
Phytochrome: These are blue-green pigments which provide significant response to longer wavelengths of light i.e. red light. Based on photoperiod, it can regulate flower induction.
Xanthophyll: These are oxygen containing carotenoid pigments. They provide various shades of yellow, orange, red hues of flowers, fruits, vegetables etc. These are also called phylloxanthins.

So, the correct answer is C. Phytochrome

Note: Riboflavin is a vitamin not a pigment. It is the common name of vitamin B2. Riboflavin or vitamin B2 is involved in several processes of our body and is essential for normal, healthy cell growth and function.
Last updated date: 25th Sep 2023
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