Forensic genetics converts biological traces into statistical identities. By amplifying Short Tandem Repeat (STR) loci through PCR and measuring allele lengths via capillary electrophoresis, analysts build genetic profiles whose random-match probabilities routinely fall below one in a quadrillion. This discipline sits at the intersection of molecular biology, population genetics, and probability theory.
These simulations let you explore the full forensic genetics pipeline. Visualize STR allele frequency distributions across populations. Calculate paternity indices and combined likelihood ratios. Deconvolve mixed DNA profiles from multiple contributors. Apply Hardy-Weinberg equilibrium to estimate match probabilities. Model how environmental exposure degrades DNA fragments over time, shrinking the window of viable evidence.