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purine A
Purine A

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Примери от интернет (не са проверени от PONS редакцията)

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Both chains are linked by hydrogen bonds that develop between a pyrimidine and a purine base .
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www.biologie.uni-hamburg.de
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Beide Ketten werden durch Wasserstoffbrücken, die jeweils zwischen einer Purin- und einer Pyrimidinbase ausgebildet werden, zusammengehalten.
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For the synthesis of a purine system , a molecule of aspartate , carbon dioxide , glycine and glutamine each and two formal-groups ( transferred by tetrahydrofolic acid ) are needed .
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www.biologie.uni-hamburg.de
[...]
Für die Synthese eines Purinringsystems werden je ein Molekül Aspartat, Kohlendioxyd, Glycin, Glutamin und zwei Formylgruppen ( übertragen durch Tetrahydrofolsäure ) benötigt.
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The answer is , that polymers where each purine opposes a pyrimidine and where the monomers are connected by always the same type of bond form regular structures .
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www.biologie.uni-hamburg.de
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Die Antwort:Polymere, bei denen stets ein Purin einem Pyrimidin gegenübersteht und bei denen die Monomeren durch stets den gleichen Bindungstyp miteinander verbunden sind, bilden regelmäßige Strukturen ( einheitliche äußere Abmessung der Doppelhelix ) aus.
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