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Science Quote by Francis Crick

"How is the base sequence, divided into codons? There is nothing in the backbone of the nucleic acid, which is perfectly regular, to show us how to group the bases into codons"

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Crick is putting his finger on a problem so basic it almost sounds naive: if DNA is just a uniform sugar-phosphate backbone with letters hanging off it, where do the “words” begin and end? The elegance of the line is that it refuses the comforting idea that biology comes pre-labeled. At the chemical level, there are no commas. No punctuation marks. Just a repeating scaffold and a sequence that could, in principle, be read in multiple frames.

The intent is diagnostic, not poetic. Crick is narrowing the mystery of the genetic code to a concrete engineering question: what physical feature enforces the triplet grouping we now take for granted? In the 1950s and early 60s, that wasn’t settled knowledge; it was an open wound. His phrasing, “perfectly regular,” is doing work: the backbone is monotonous, which means the mechanism that chunks information into codons can’t be hand-waved as an obvious structural cue.

The subtext is a quiet rebuke to overly tidy explanations. If the molecule doesn’t advertise its reading frame, then the “code” must be imposed by a system: the translation machinery, constraints of protein synthesis, and error consequences. Meaning arises from interaction, not from the text alone. In a deeper cultural sense, it’s a reminder that information is never just data; it’s data plus a reader. Crick’s skepticism here helped push biology toward its modern view of life as computation performed by fallible, evolved hardware.

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APA Style (7th ed.)
Crick, Francis. (2026, January 18). How is the base sequence, divided into codons? There is nothing in the backbone of the nucleic acid, which is perfectly regular, to show us how to group the bases into codons. FixQuotes. https://fixquotes.com/quotes/how-is-the-base-sequence-divided-into-codons-5509/

Chicago Style
Crick, Francis. "How is the base sequence, divided into codons? There is nothing in the backbone of the nucleic acid, which is perfectly regular, to show us how to group the bases into codons." FixQuotes. January 18, 2026. https://fixquotes.com/quotes/how-is-the-base-sequence-divided-into-codons-5509/.

MLA Style (9th ed.)
"How is the base sequence, divided into codons? There is nothing in the backbone of the nucleic acid, which is perfectly regular, to show us how to group the bases into codons." FixQuotes, 18 Jan. 2026, https://fixquotes.com/quotes/how-is-the-base-sequence-divided-into-codons-5509/. Accessed 12 Feb. 2026.

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Crick on codons and the reading frame
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Francis Crick (June 8, 1916 - July 28, 2004) was a Scientist from England.

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