I can't seem to fathom how a dinucleotide is formed.

My textbook says that initially both nucleotides have 3 phosphate groups before the join but the formation releases only one pyrophosphate look at this

If dinucleotide formation releases only one pyrophosphate, where did the two phosphates of the upper nucleotides go?

Also does this mean it releases 2 pyrophosphates? How many pyrophosphate are released during trinucleotide formation?

  • $\begingroup$ I’ll answer your question if you 1. Give title, author and publication date of your textbook, 2. The title of the chapter and section from which this picture is taken — DNA replication I presume, in prokaryotes or eukaryotes or doesn’t say.? 3. Finish reading the Tour — which we can tell you haven’t yet. $\endgroup$
    – David
    Nov 5, 2023 at 16:14


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