" Genetics - Macmillan Science Library Vol 4, R-Z " By Richard Robinson: " The following section provides a group of diagrams and illustrations applicable to many entries in this encyclopedia. The molecular of DNA and RNA are provided in detail in several different formats, to help the student understant the structures and cisualize how these molecules combine and interact. The full set of human chromosomes are presented diagrammatically, each of which is shown with a representative few of the hundreds or thousands of genes it carries...".