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Question

Which pigment is involved in photoperiodic change in plants?


A

Phytochrome

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B

Cytochrome

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C

Chlorophyll

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D

Anthocyanin

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Solution

The correct option is A

Phytochrome


Phytochrome is a pigment universally present in green flowering plants and is mainly responsible for photomorphogenic changes and developmental processes in them.

Cytochrome is an iron-containing hemeprotein that takes part in various metabolic activities.

Chlorophyll is a green pigment involved in photosynthesis.

Anthocyanins are water-soluble vacuolar pigments that may appear red, purple or blue.


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