[general_re]

Again, the fact that bats, flies, and birds have wings and they flap them to fly does not establish a common ancestry. The point established by the photosynthesis result is that common features and common solutions do not indicate the ancestry of the process. The pieces and parts could indicate "plagiarism" or common solutions.

And when you find an article that claims that common features are necessarily a result of common ancestry, your criticism will be valid. All this article says is that there is likely a relationship between the two.

[AndrewC]

All this article says is that there is likely a relationship between the two.

But the only number that can be put on that conjecture is the sequence comparison.