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Chances are you've seen an illustration of DNA's double-helix structure and even pictures of the chromosomes that comprise the human genome. But where and how does the famous double helix fit into ...

DNA is found in nearly all living cells ... scientists must first use a chemical process that attaches the chromosomes to a glass slide and stains or "paints" them. Staining makes the chromosomes ...

Scientists who study molecular structures have known this ever since James Watson saw Photo 51 and went on to deduce DNA's structure with Francis Crick. Researchers today continue to rely on ...

A DNA microarray (sometimes called a DNA chip) is a small glass slide with short DNA probes attached to it in a specific pattern. When a sample of fragmented DNA is washed over the microarray ...