Are the two strands of the double helix collectively called the DNA molecule, or is each individual strand the DNA molecule?

  • $\begingroup$ Been asked before. Try searching to find it. But you won’t find a satisfactory answer, because it’s not a question that concerns molecular biologists. Semantics are not where science is at in the 21st century. $\endgroup$
    – David
    Jul 5, 2020 at 17:46
  • $\begingroup$ Does this answer your question? Is a DNA molecule a single strand of polynucleotide or two of them linked together? $\endgroup$
    – acvill
    Jul 5, 2020 at 17:50
  • 1
    $\begingroup$ @Dirigible Kinda. There doesn't seem to be agreement between the answers posted by different users on that post, though one of the users posted a reference from a book, so I'm going with that. Thanks a ton! $\endgroup$ Jul 6, 2020 at 6:39
  • $\begingroup$ @David I found the post, thanks. As you said, no satisfactory answer. Yeah, modern science isn't too concerned with the semantics of stuff, and rightly so, but sometimes there are loose definitions of some things that do confuse me sometimes while reading course material. $\endgroup$ Jul 6, 2020 at 6:43
  • $\begingroup$ I have actually added an answer to that post as the accepted answer is, in my opinion, an unjustified assertion. There is, as far as I am aware, no formal definition of molecule in a molecular biological context — presumably because there is no need for one. $\endgroup$
    – David
    Jul 6, 2020 at 17:31


Browse other questions tagged .