For Simplicity One Can Think Of The

A Final Proof Of Our Ideas Can Only Be Obtained By Detailed Studies On The Alterations Produced In The Amino Acid Sequence Of A Protein By Mutations Of The Type Discussed Here.

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.

An Honest Man, Armed With All The Knowledge Available To Us Now, Could Only State That In Some Sense, The Origin Of Life Appears At The Moment To Be Almost A Miracle, So Many Are The Conditions Which Would Have Had To Have Been Satisfied To Get It Going.

It Is One Of The More Striking Generalizations Of Biochemistry - Which Surprisingly Is Hardly Ever Mentioned In The Biochemical Textbooks - That The Twenty Amino Acids And The Four Bases, Are, With Minor Reservations, The Same Throughout Nature.

Almost All Aspects Of Life Are Engineered At The Molecular Level, And Without Understanding Molecules We Can Only Have A Very Sketchy Understanding Of Life Itself.