Brainstorms: The 'needlenose cellular pump' and the importance of assembly sequence

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Topic: The 'needlenose cellular pump' and the importance of assembly sequence

David L Rice
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Member # 167

posted 17. April 2002 11:22

While watching "Unlocking the Mystery of Life" I saw the segment on the Neo-darwinian argument against design based on the co-option theory. This particular argument stated that parts from the bacterial flagellum could have been used in the construction of another apparatus (in this case a needlenose cellular pump). My first question is just what is this needlenose cellular pump? What does it do? and how does it function? The second is what is the pathway for the sequential arrangement (assuming that it is indeed sequential) of the parts in the construction of this 'pump'? It seems like a good test for this particular view of co-option would be to first assess this sequence of the pump and then to compare it with the sequence of the bacterial flagellum. It's not the sharing of certain parts that is important it's the order in which those parts are arranged. This is of course assuming that the cellular pump was the precursor to the flagellum. Is the co-option view testable? [Confused]

[ 17 April 2002, 12:33: Message edited by: Moderator ]

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posted 17. April 2002 11:55

David:
I am going to change the title of your thread to better reflect the direction that I'd like to see this post go.

It would be good for you and future posters to develop the following comments :

"It seems like a good test for this particular view of co-option would be to first assess this sequence of the pump and then to compare it with the sequence of the bacterial flagellum. It's not the sharing of certain parts that is important it's the order in which those parts are arranged. This is of course assuming that the cellular pump was the precursor to the flagellum. Is the co-option view testable?"

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