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The plant uses light to produce energy but also as a signal of how and when to grow (phototropism, photoperiodism). In the context of your question I'll first cover light-harvesting in photosynthesis and then phototropism. Tl;DR Blue and red light are important for plant growth. Red light is the main one in photosynthesis and if a plant is exposed to another ...


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It is not an acronym; it is an abbreviation of pinnulate (or pinnulated), which means having the pinnulae of a pinnate leaf properly developed. Gene symbols written in all caps indicate the wild-type condition of the organism: If a gene is referred to as PIN1, it means its product (an auxin transporter) permits normal branching (or at lest does not ...


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