Srinivas S wrote:
> Tim Tyler wrote:
> 
> 
>>Regarding a old, recurring SBE debate...
>>
>>Here's Dawkins on the relationship between man and chimpanzees:
>>
>>``The 98% doesn't mean we are 98% chimpanzees.  And it really matters
>>  what unit you choose to make your comparison.  If you count the
>>  number of whole genes that are identical the figure for humans
>>  and chimpanzees would be close to zero.''
>>
>> - A Devil's Chaplain, p.84.
> 
> 
> I have some questions, would someone please answer...
> 
> 1)What then does the 98% signify? 

Of the genes looked at, 98% of the bases are the same.

Part genes? Do part genes code for any
> feature?
> 2)What percentage of identical genes will we find between 2 randomly
> selected humans? 

That depends on the frequency distrbution of the different genes, so 
it's difficult to answer.

I assume that 50% number for parent-child arises out of
> meiosis. What about the number for between the two parents? If black color
> for eye is so common compared to blue color, does it imply that even between
> the unrelated parents, the eye-color gene is very likely to be identical. 

Yes.  Now you can start to see why the previous question is difficult to 
answer.

Or
> is it that many non-identical genes code for black eye color?
> 
This is possible, indeed if the trait is old, then the gene could have 
mutated several times, but have retained the phenotype.

Bob

-- 
Bob O'Hara

Dept. of Mathematics and Statistics
P.O. Box 4 (Yliopistonkatu 5)
FIN-00014 University of Helsinki
Finland
Telephone: +358-9-191 23743
Mobile: +358 50 599 0540
Fax:  +358-9-191 22 779
WWW:  http://www.RNI.Helsinki.FI/~boh/
Journal of Negative Results - EEB: http://www.jnr-eeb.org
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