November 13, 2026
Genomes vary widely across species, in both size and composition1–5. Try a species below.
1 E. coli K-12 MG1655: computed by Claude Opus 5.5 from the NCBI reference genome NC_000913.3 (Blattner et al. 1997). Short repeats are not annotated and are included in "other".
2 S. cerevisiae S288C: computed by Claude Opus 5.5 from the NCBI reference genome GCF_000146045.2 (Goffeau et al. 1996), except protein-coding sequence, taken directly from that paper, and transposons, taken from Kim et al. (1998). Other short repeats are not annotated and are included in "other".
3 D. melanogaster: computed by Claude Opus 5.5 from the NCBI reference genome GCF_000001215.4 (Hoskins et al. 2015) and its repeat annotation (Smit, Hubley, and Green 2013–2015), scaled to a total genome of 1.8×108 bp (Adams et al. 2000), with satellites from Lohe and Brutlag (1986).
4 H. sapiens: computed by Claude Opus 5.5 from the NCBI reference genome GCF_009914755.1, the first telomere-to-telomere assembly (Nurk et al. 2022), and its repeat annotation (Smit, Hubley, and Green 2013–2015).
5 Each base pair is counted in only one category: for example, a transposon inside an intron is counted as a transposon, not as part of the intron.