Topic: Plant growth regulators: auxin, gibberellin, cytokinin, ethylene, ABA· Plant Physiology

Phytochrome is a

1. glycoprotein

2. lipoprotein

3. chromoprotein

4. flavoprotein

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Answer: 3. chromoprotein

Phytochrome is a pigment protein with a light-absorbing non-protein part (a linear tetrapyrrole, phytochromobilin) attached to the protein. A coloured protein of this type is called a chromoprotein.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Phytochrome is a

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