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

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

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The meaning of this observation is unclear, but it raises the unfortunate possibility of ambiguous triplets; that is, triplets which may code more than one amino acid. However one would certainly expect such triplets to be in a minority.
- Francis Crick
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The dangerous man is the one who has only one idea because then hell fight and die for it.
- Francis Crick

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

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