Formation and origin

However enthusiastic we may be about these discoveries and successes, we must not forget that ready-made peptides were used we know nothing about the formation and origin of such peptides on the deserted, desolate Earth. 

The most ambiguous point in the oxynoid hydroxylation mechanism with cytochrome P-450 is the question about the formation and origin of the oxygen intermediate Fe3+ O, where the oxygen atom (possessing six electrons in the external cover) is coordinated withFe3+. 

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