Every living organism carries within its cells a molecular instruction manual written in the four-letter alphabet of DNA: A, T, C, G. These three billion letters in the human genome encode roughly 20,000 genes that build proteins, regulate development, and ultimately define the biological machinery of life. Understanding genetics means understanding the most fundamental code in nature.
These simulations explore genetics from Mendel's foundational experiments with pea plants to modern population genetics and gene editing. Predict inheritance patterns with Punnett squares, watch allele frequencies shift through Hardy-Weinberg dynamics, observe DNA replication at the molecular level, and see how CRISPR-Cas9 targets and edits specific genes.