If you’re looking to brush up on topics such as DNA replication, protein structure, or molecular biology laboratory techniques, you’ll enjoy the Molecular Biology Review app by Lou Devlin. This app is divided into 10 chapters that include (in addition to those topics listed above): history and overview, nucleic acids, chromosomes, the genetic code, transcription, translation, and gene regulation. For each chapter, there is a lecture (with both an audio file and text/graphics), a set of flash cards, a chapter test, and a test statistics summary to track one’s progress. The app includes a significant amount of material, with each lecture ranging from 5 to 30 minutes in length. Some of the graphics are not the greatest quality, but they are still informative.