OBJECTIVE LIFE SCIENCE
DEVELOPMENTAL BIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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etiolation and auxin
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etiolation and abscisic acid
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epiolation and auxin
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epiolation and abscisic acid
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Detailed explanation-1: -Yellow and white light have the lowest effect on plant growth. Red light impacts plant growth in several ways, including during the blooming and flowering phase. Certain specific red wavelengths will increase the production of a hormone in a plant’s vegetation that prevents the breakdown of chlorophyll.
Detailed explanation-2: -Seeds push little leaves up from the ground into the light. A house plant in a dark room will grow toward the light. This movement in response to light is called phototropism. When a plant moves toward the light, it’s called positive tropism.
Detailed explanation-3: -The plants that were not exposed to light grew 15.7 millimeters more on average, and the difference of growth between no light and half light plants was 7.27 millimeters. In conclusion, the plants that were exposed to no light whatsoever, were the ones who grew significantly larger than the other plants.