Lie superalgebras and the multiplet structure of the genetic code. II. Branching schemes

Continuing our attempt to explain the degeneracy of the genetic code using basic classical Lie superalgebras, we present the branching schemes for the typical codon representations (typical 64-dimensional irreducible represen tations) of basic classical Lie superalgebras and find three schemes that d o reproduce the degeneracies of the standard code, based on the orthosymple ctic algebra osp(5\2) and differing only in details of the symmetry breakin g pattern during the last step. (C) 2000 American Institute of Physics. [S0 022-2488(00)06305-2].