What Is the Purpose of RNA Splicing? Why Do Some

Question

Examlex · Accepted Answer

The Answer is RNA splicing is important in eukaryotic cells, but especially prevalent in complex multicellular organisms. A major justification is an evolutionary argument. By splitting the genetic information within genes into different little exons, it becomes possible to create new genes by recombining exons from one gene with exons from another. Thus, for example, various genetic mechanisms allow individual exons to be duplicated or swapped from one gene to another on an evolutionary timescale. See Figure 2.15 for an example. An additional source of complexity comes from using different combinations of exons to make alternative transcripts from the same gene (alternative splicing).

What Is the Purpose of RNA Splicing? Why Do Some

Definitions: