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BioNumbers is in its infancy and there are notable gaps in the available data. Search results often contain false positives.
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Caution: reported numbers depend upon experimental conditions which are provided as part of the BioNumbers entry.
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Mean dry mass (male) Fruit fly Drosophila melanogaster 0.219-0.304 mg 102570
Worthen, W.B., Latitudinal... more
Size (diameter) of most abundant cyanobacteria Prochlorococcus 0.6 (0.5-0.7) µm 101520
Partensky F, Hess WR... more
GC content of E. coli K12 chromosome Bacteria Escherichia coli 50.8 % 100528
Escherichia coli K12... more
Optical density (OD) at 450nm per 10^9cells/ml Bacteria Salmonella typhimurium 0.9 at growth rate of 0.31 hour^-1 to 4.1 at growth rate of 2.4 hour^-1 Unitless 105886
Aldea M, Herrero E, Esteve MI... more
Cell dimensions of S. typhimurium LT2 at different growth rates Bacteria Salmonella typhimurium Table - link N/A 105857
Aldea M, Herrero E, Esteve MI... more
Total carbon stored in the atmosphere Biosphere 720 (Table - link) 10^15 g 100967
aquatic photosynthesis... more
Concentration of platelets in blood Human Homo sapiens ~200,000 150,000-350,000 platelets/mm^3 102750
Robert E. Marx, DDS,... more
pH in mitochondrial intermembrane space (MIMS) in Human endothelial cell ECV304 Human Homo sapiens 6.88 (±0.09) pH units 107271
Porcelli AM, Ghelli A... more
Lifespan of cells in small intestine Mouse Mus musculus 2 to 3 Days 109231
Potten CS. Stem cells... more
Cell cycle duration of HeLa cell Human Homo sapiens ~22 Hours 109393
Posakony JW, England JM... more
Number of EcorI and EcorV dimer copies per cell Bacteria Escherichia coli EcorI ~1,000 dimer copies/cell: EcorV 100 dimer copies/cell copies/cell 113303
Pollak AJ, Chin AT, Reich... more
Mutation rate per genome per replication Nematode Caenorhabditis elegans 0.018 (Table - link) mutation/genome/replication 100290
Drake JW, Charlesworth B... more
Percent of rRNA and tRNA from total RNA bacteria 95–97 % 102939
Rosenow, C., et al.,... more
Density of starch granules Potato Solanum tuberosum 1.55 g/ml 103206
D. R. Isleib, Density... more
Diffusion coefficient of DNA in water Generic 0.81 to 53 µm^2/s 106089
Lukacs GL, Haggie P, Seksek O... more
Number of DNA repair enzymes and frequency of damaged bases excised Bacteria Escherichia coli ~10^5 repair enzymes/cell: Excised damaged bases are 1 every 10^6 bp N/A 113298
Pollak AJ, Chin AT, Reich... more
Concentration of viruses in seawater Virus 10^6-10^8 viral particles/ml 113291
Taylor MW, Radax R, Steger D... more
Fraction of viral particles removed from seawater Red Sea sponge Negombata magnifica 23 % 113290
Taylor MW, Radax R, Steger D... more
Estimated number of viral particles in feces Human Homo sapiens ≥1E+9 virus-like particles/gram 110707
Minot S, Bryson A, Chehoud C... more
Estimated sulfate reduction rate Cold-water sponge Geodia barretti ≤1,200 nmol [SO4]2-/cm^3 sponge/day 113286
Taylor MW, Radax R, Steger D... more