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This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

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DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..

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Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..

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Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..

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This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

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This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..