'X-Shape' Not Real Structure of Chromosome

September 26, 2013 7:22 PM

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When you learn about chromosomes, you usually visualize an X-shaped blob of DNA. Yet that isn't the true form of an X chromosome. Now, scientists have created a new method for visualizing chromosomes to paint a truer picture of their shape, revealing a little bit more about this DNA.

"The image of a chromosome, an X-shaped blob of DNA, is familiar to many but this microscopic portrait of a chromosome actually shows a structure that occurs only transiently in cells--at a point when they are just about to divide," said Peter Fraser, one of the researchers, in a news release. "The ...

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