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Schematic diagram of bacterial lactose operon
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Learn how the way genes control and determine every aspect of the body. This lesson uses lac operon as an example. ..

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Lights’ Effect on Growth

This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..

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Chromosomes X and Y and Sex Determination

This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

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ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..

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The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

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A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..