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Table 4.2

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   Chromosome Numbers of Eukaryotic Cells

OrganismGenome size (Mb)aChromosome numbera
Yeast (Saccharomyces cerevisiae)1216
Slime mold (Dictyostelium)707
Arabidopsis thaliana1305
Corn5,00010
Onion15,0008
Lily50,00012
Nematode (Caenorhabditis elegans)976
Fruit fly (Drosophila)1804
Toad (Xenopus laevis)3,00018
Lungfish50,00017
Chicken1,20039
Mouse3,00020
Cow3,00030
Dog3,00039
Human3,00023
a

Both genome size and chromosome number are for haploid cells. Mb = millions of base pairs.