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Each DNA double helix is divided into a certain number of genes, marked by a specific start sequence-- sort of like chapters in a book. One whole piece of DNA is referred to as a "chromosome." Humans have 2 sets of 23 of these, for a total of 46. Although estimates vary, there are between 20,000 and 100,000 genes in the entire human "genome."

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Structure that contains genes?

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What are the two common names for the structure of DNA?

The two common names for the structure of DNA are double helix and spiral staircase.


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