Topic 8 - Receptors

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How do phytochromes switch processes on or off?

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They bind to DNA to allow transcription of light-regulated genes

These signal proteins may act as transcription factors

They may do this by interrupting the binding

These proteins result in the plant's response to light

Gene is transcribed and translated, synthesising specific proteins

Activated phytochromes interact with other proteins

Phytochromes change shape when exposed to light


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