DNA, RNA and genes
DNA, RNA and genes
DNA stores genetic information in genes, which are sequences of bases that code for a polypeptide or a functional RNA. Proteins made from these instructions act as enzymes, receptors, channels or structural molecules.
Step-by-step lessons on Edexcel A A Level Biology DNA, RNA and protein synthesis. Each one builds up to exam-style questions. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.