DNA Structure and Replication

ID #2065

One of the questions states that covalent bonds hold complementary base pairs together. So far, we have referred to H bonds and covalent bonds as two distinct bonding types. However, I know that H bonds are technically covalent bonds. Should I continue to assume we are referring to H bonds as a separate bond type from covalent bonds when answering this question?

Yes, we'll continue to distinguish between the types of bonds and stabilizing forces the same way we did for prior material. Also, I'm not sure where you heard that hydrogen bonds are covalent, but that's not entirely accurate. They're really just electrostatic interactions between polar molecules based on the partial charge between them. That's why they get their own category. The distance between them is also much greater than the distance between two atoms in a covalent bond, contributing to the relative ease of their dissociation.

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