7.2 m_ev


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          1           22         1.7*104
 Mycoplasma capricolum       2           ?          1.0*106
 Escherichia coli            7          ~100        4.0*106
 Saccharomyces cerevisiae   ~140        320-400     5.0*107
 Drosophila melanogaster    130-250     ~750        2.0*108
 Homo sapiens               ~300        ~1300       3.0*109
 Xenopus laevis             400-600     ~7800       8.0*109
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( Li, 1983 )

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