The astronomical length of DNA

Just how long is all of your DNA?

Let’s start with a quick recap. The sequence of Deoxyribonucleic acid (DNA), is famously spelt out in just 4 letters — A T G and C. Each letter represent the repeating ‘bases’; adenine, thymine, guanine and cytosine. And the famous DNA double helix is a twisted ladder, each rung made from a pair of bases. Adenine always pairs with thymine whilst cytosine pairs with guanine.

Prof of Science Communication and chemistry & dyslexic writer e.g. http://pubs.rsc.org/en/content/ebook/978-1-78262-487-5, https://theconversation.com/

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