Gene Expressin

This week in AP Biology we talked about gene expression. Gene expression is the process by which information from a gene is used in synthesis of a functional gene product. These products are usually proteins.There are three steps to gene expression. The first step is transcription and it is the synthesis of RNA using DNA as a template and also produces mRNA. The second step is RNA processing. The mRNA that was made in transcription goes to RNA processing to yield the final mRNA. The final step is translation. Translation is the production of a polypeptide chain using using the mRNA transcript.