This sort of homology[1] or this sort[2]? It looks like this is about the first one and proteins usually involve the second one. If they are more related than I

This sort of homology[1] or this sort[2]? It looks like this is about the first one and proteins usually involve the second one. If they are more related than I expect, I would love to find out. [1] https://en.wikipedia.org/wiki/Homology_(mathematics) https://en.wikipedia.org/wiki/Homology_(mathematics) [2] https://en.wikipedia.org/wiki/Sequence_homology https://en.wikipedia.org/wiki/Sequence_homology