Please note: This exhibit may be out of date, please visit our new Genetics online exhibit.

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Coiling Chromosomes

Spaghetti changing into a Chromosome Sometimes cells use a kind of fork to wind up their DNA spaghetti into structures called chromosomes. In this picture, notice how the DNA from the previous page is coiling into an X shape. That X shape is a picture of a chromosome taken with a very powerful microscope. Although chromosomes are not always in this perfect shape, they are often represented as "X"s.