Counter-proof against the molecular clock theory???

higgins at ebi.ac.uk higgins at ebi.ac.uk
Tue Jul 11 04:43:26 EST 1995


In article <3trpco$sb6 at studium.student.umu.se>, Ludvig Mortberg <Agneta.Guillemot at historia.umu.se> writes:
> First of all you have to define what the molecular clock  
> is all about. One definition could be: the molecular  
> clock states that homolog parts of the genome with  
> similar functions or physical positions on the  
> chromosome(s), e.g. a certain gene, an intron or a  
> specific non coding region between coding sequences,  
> change with a constant speed, in a random manner, in  
> different species.  
>  
> For example compare myoglobin, or rRNA in falcons  
> and you should be able to determine the relationships in  
> this group.  
>  
> Can anyone figure out a way of producing counter- 
> proof against this theory? How would one go about  
> doing this? One way would be to find in an analysis of  
> relationships of species different evolutionary trees  
> when comparing different portions of the genome. I  
> belive this has been found. Another way would be to  
> find inconsistencies when comparing molecular data  
> with paleotological data. I think this has been found to.  
> Perhaps somebody can fill me in on this. Anyone know  
> other ways of producing counter-proof to the molecular  
> clock theory? Or proof of it for that matter. 
>  
> Hope to get some lively arguments. 
>  
> Ludde 
> 
> 



More information about the Mol-evol mailing list