FastSaying

It seems likely that most if not all the genetic information in any organism is carried by nucleic acid - usually by DNA, although certain small viruses use RNA as their genetic material.

Francis Crick

Francis Crick

AcidAlthoughAnyCarriedCertainDNAGeneticInformationLikelyMaterialMostOrganismSeemsSmallUseViruses

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This seems highly likely, especially as it has been shown that in several systems mutations affecting the same amino acid are extremely near together on the genetic map.
— Francis Crick
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It now seems certain that the amino acid sequence of any protein is determined by the sequence of bases in some region of a particular nucleic acid molecule.
— Francis Crick
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It now seems very likely that many of the 64 triplets, possibly most of them, may code one amino acid or another, and that in general several distinct triplets may code one amino acid.
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Do codons overlap? In other words, as we read along the genetic message do we find a base which is a member of two or more codons? It now seems fairly certain that codons do not overlap.
— Francis Crick
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The organism is only DNA's way of making more DNA.
— Edward O. Wilson
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