In an MPN(see figure 18.4), why is the actual number of cellsper sample likely to be between the reciprocal of the highest dilution shouing growth and the next highest dilition?

• MPN中每次稀释10倍，最终试管中菌的数量已经相当的少＜10，进一步稀释10倍，可能取到菌但也可能没有取到，因此实际菌数位于两者之间。