Conditio Sine Qua Non for de Novo Emergence of New Genes and the Concept of Primordial Building Blocks

摘要: So long as a particular vital function is assigned to the single gene locus in genome, all function-altering mutations are diligently eliminated by natural selection. Thus, mechanism of duplication emerges prime means create new genes with previously nonexistent functions (Ohno, 1970). Redundant copies existing created this largely ignored selection, and while being ignored, they free accumulate emerge endowed functions. Indeed, very> fact that nearly can be considered members different families propinquity their descents reveals role played evolution; e.g., serine protease family, β2-microglobulin family. Yet, very slow, inefficient cumbersome shall pointed out shortly. Therefore, unfit fulfill organism’s need cope rapidly changing environments. In paper, we point under certain conditions, roles flash two novel means.