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Jet001 [13]
3 years ago
7

Nitrogen bases have two rings structure are called

Biology
1 answer:
djverab [1.8K]3 years ago
4 0
Purines: adenine and guanine
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<h3>What is the purpose of blood flow in heart?</h3>

The removal of positive charge by electrochemical gradients causes the membrane potential of the cell to shift more strongly in the direction of the equilibrium potential for potassium.

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