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Some things are far easier to watch than to read about. These explainers cover the concepts students get stuck on — how sequencing actually works, why we run FastQC, how a read finds its place in the genome, and how a neural network learns.
Variants & genomes
A column of reads at one position, and the four numbers that decide whether the difference from the reference is real. Switch the truth between a heterozygote, an artefact and pure noise, and watch how similar they look.
Variants & genomes
Every fragment is read from both ends, which gives you two facts for free: how far apart the mates landed and which way they point. Watch each kind of structural variant leave its own fingerprint in those two numbers.