4. DNA and the genome

Available for over a year

Dr Alex Lathbridge guides you through important GCSE Biology facts, with a few jokes thrown in too. In this fourth episode of our series all about the cell, Dr Alex Lathbridge breaks down the key facts about DNA: what it is, how it's made and how it works. Dr Alex talks about how chromosomes, genes and nucleotide bases all work together, and what the genome is. Take a look on the BBC Bitesize website to find out more about this topic, with revision notes, quizzes and exam-style questions: https://www.bbc.co.uk/bitesize/guides/z2kmk2p/revision/1 and https://www.bbc.co.uk/bitesize/guides/zycmk2p/revision/3