DNA Yourself!

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Okay, so the heroic attempt to outsmart the BBC and produce my own animation zooming in on an X-chromosome and showing, ultimately, the unwinding of a DNA strand has resulted in UTTER failure. The image you see above is the only thing I've got to show for my efforts. The trouble is maths, you see, I was never any good at maths. No, not good with numbers at all. Why, some say I don't even add up!

P.S. d.d. 110905. Check out the absolutely gorgeous and highly illustrative animation from the BBC at [url]http://www.bbcmotiongallery.com[/url], the 24th query result for "DNA", BBC Reference NumberAEMQ510H, the preview of which I dare not even reproduce here. Read the BBC's conditions of use and do NOT distribute the preview.