Hi judge,
This statement in the paragraph you quoted rang alarm bells for me :
quote:
It could be called extraordinarily coincidental, if not to say miraculous, that these neutral changes always and only take place around the diverging of two species.
The author seems to have based it on information that probably doesn't exist. How do they know that cytochrome C doesn't vary within the same species of shark? What study is this based on? How much individual sequence data is there on the shark genome?
Cytochrome C seems to vary in humans for example. I've just queried "cytochrome C NOT oxidase"
here and I found that items 7-49 had variations in the cytochrome C gene (the first 6 were from another gene with cytochrome C in it's name). That's quite a lot of variation for genetic drift to play with.
I would add that I am not a geneticist so I may have committed a horrendous error here (people are welcome to correct me and make me look daft
), but I'd still want to see the studies that show that
no variation is seen within species.
Cheers
Edit: Dikshunrees, hoo needs 'em?
This message has been edited by Ooook!, 24-03-2005 11:02 AM