Science, Maths & Technology
What is the genome made of?
...double helix model of DNA, which they built to help them to determine its structure; the model was assembled from metal clamps used to hold test-tubes and other bits of laboratory apparatus. Watson and Crick showed that DNA or deoxyribonucleic acid has a double helix structure: two helical strands like spiral staircases, coiled round one another. It is this structure that...