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What type of bonds holds the two strands of DNA together and where are these bonds within the double helix structure? covalent bonds; between the nucleotide bases 2.ionic bonds; scientists have not discovered where these are in the DNA helix 3.hydrogen bonds, between the sugar and phosphate groups 4 hydrogen bonds; between the nucleotide bases covalent bonds; between the nucleotide bases 2.ionic bonds; scientists have not discovered where these are in the DNA helix 3.hydrogen bonds, between the sugar and phosphate groups 4 hydrogen bonds; between the nucleotide bases

What type of bonds holds the two strands of DNA together and where are these bonds within the double helix

structure?

  1. covalent bonds; between the nucleotide bases

2.ionic bonds; scientists have not discovered where these are in the DNA helix

3.hydrogen bonds, between the sugar and phosphate groups

4 hydrogen bonds; between the nucleotide bases

 
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