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How do the nucleotides in dna bond with each within a strand

User BraggPeaks
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Within a strand, via phosphates which link carbon 3 of dextrose on onenucleotide with carbon 5 on the dextrose of the next nucleotide producing a sugar- phosphate backbone to the chain. Across strands, via base pairing, H bonds between A & T; G & C.
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