Question

which of the following forms phosphodiester bonds in dna? phosphate to phosphate phosphate to sugar base to base

Explanation:

In DNA, a phosphodiester bond is formed between the phosphate group of one nucleotide and the sugar (deoxyribose) of the next nucleotide. This creates the sugar - phosphate backbone of the DNA strand. Phosphate - to - phosphate bonds are not part of the DNA structure in terms of forming the backbone. Base - to - base interactions are hydrogen bonds that hold the two strands of DNA together (e.g., adenine - thymine and guanine - cytosine base pairs), not phosphodiester bonds.

Answer:

phosphate to sugar