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During DNA replication, what occurs?
O The covalent bonds between sugar and phosphate molecules are broken.
O The hydrogen bonds between sugar and phosphate molecules are broken.
O The hydrogen bonds between pairs of nitrogenous bases are broken.
O The covalent bonds between pairs of nitrogenous bases are broken.
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During DNA replication, what occurs?
O The covalent bonds between sugar and phosphate molecules are...
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