Biology · Biology
DNA, Genes & Proteins
How a four-letter code builds a body. The double helix and base pairing, replication, the central dogma (DNA → RNA → protein), the genetic code, mutations, and modern tools from mRNA vaccines to CRISPR.
Step 1 of 6 · Overview35 min read ·
Key idea
Prereqs: Cells. Next: Evolution by natural selection. Follows Crash Course Biology, Amoeba Sisters, OpenStax *Biology 2e* ch. 14–16; Watson & Crick (1953) with Rosalind Franklin's X-ray data.Next: 1. The molecule