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Each cell expresses, or turns on, only a fraction of its genes. The rest of the genes are repressed, or turned off. The process of turning genes on and off is known as gene regulation. ... Gene regulation also allows cells to react quickly to changes in their environments.
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Nepal is rich in biodiversity because of its unique physical features, thus we find many types of flora and fauna here. But unfortunately people have polluted and destroyed the habitat of these organisms and due to that everyday one or the other species of certain animals/plants is becomin
Its called till just look it up