RE: Evolution of the the Bacterial Flagellum
June 28, 2013 at 11:55 am
(This post was last modified: June 28, 2013 at 12:00 pm by The Grand Nudger.)
(June 28, 2013 at 11:46 am)Kim Wrote: I understand that. Structures that were used for different purposes can be utilized in a different manner. In the case of flagellum, the proteins in the flagellum should be traced back to precursors that were providing a different functionality in the precursor bacteria. In order to prove that, you need to show that the flagellum proteins have homologs. If only 50% have homologs, what is your explanation for the other 50%?I told you, alien waffles.
Quote:So the question is, how did those proteins evolve? How were they incorporated into the flagellum?What you're actually asking is more precisely -when and exactly what/where from and to-. As the "how" would be the same for any other example. In either of those cases I can't help you (and the difficulty in establishing such a thing is fairly easy to understand). It would be fantastic to figure that out, though, agreed. Estimating this is one thing, finding a specimen (and determining that the specimen found is the correct specimen) is entirely another.
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