On 2017 Aug 05, Fernando Castro-Chavez commented:

Dear Reader, in this article I explore the representation of the 64 codons of the genetic code within a tetrahedron, putting the 16 hydrophobic codons at the center of each of its four sides, while putting the three exit codons (the stop ones) at the three angles of the base, while the start codon was located at the top angle, just as receiver antenna. This 3-D geometry is compared with my previous efforts on producing one of several meaningful square 2-D representation, and finding the sense of its classic 2-D representation which after rotating 90 degrees per side, every time the equivalent hydrophobic codons appeared, which gave me the idea, in a previous publication, of the rules of variation, that produce equally useful proteins and enzymes by using equivalent amino acids obtained from equivalent codons. Sincerely, Fernando Castro-Chavez.

On 2017 Aug 05, Fernando Castro-Chavez commented:

Dear Reader, in this article I explore the representation of the 64 codons of the genetic code within a tetrahedron, putting the 16 hydrophobic codons at the center of each of its four sides, while putting the three exit codons (the stop ones) at the three angles of the base, while the start codon was located at the top angle, just as receiver antenna. This 3-D geometry is compared with my previous efforts on producing one of several meaningful square 2-D representation, and finding the sense of its classic 2-D representation which after rotating 90 degrees per side, every time the equivalent hydrophobic codons appeared, which gave me the idea, in a previous publication, of the rules of variation, that produce equally useful proteins and enzymes by using equivalent amino acids obtained from equivalent codons. Sincerely, Fernando Castro-Chavez.