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Pierre-Paul Grassé - The mutation of bacteria and...
The mutation of bacteria and viruses are merely hereditary fluctuations around a median position; a swing to the right, a swing to the left, but no final evolutionary effect. (Pierre-Paul Grassé)

The mutation of bacteria and viruses are merely hereditary fluctuations around a median position; a swing to the right, a swing to the left, but no final evolutionary effect.

Pierre-Paul Grassé

Related topics

bacteria effect final left median mutation position right swing

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