Re: [pyrnet] Recessives and carriers

[JGentzel@aol.com]

In a message dated 12/20/00 2:39:40 PM Pacific Standard Time, 
lmweisser@olywa.net writes:


> Nonetheless, dilution is not possible.  


With all due respect you are making this more than it really is.  You 
"Presume" each dog in each subsequent generation is a carrier.  It may be 
ultimately safe to peresume every dog is from every litter, subsequent to a 
carrier is also a carrier, but it is not correct.  Our problem is we do not 
know (many or most times) who is whom (boy I hope my English teacher is not 
watching this).  The presemption is only that and when stating the 
presemption of 50% going equally every generation, one needs to state that.  
To do therwise might and will mislead some to make incorrect assumptions of 
fact.  This is presumpition only and not fact.  Probability tells us clearly 
that from generation "0" with the carrier to generation 1 it will be 50/50, 
carriers Vs clear.  Generation 2 will be 25/75 carriers to clear.  Generation 
3  will be 12.5/87.5 carriers to clear.  From what you are saying!
 any dog 
with El Amour Bruno Balibasque in their pedigree has a 50/50 chance of 
producing Dwarfs.  I don't think that is what you mean to say, as this is not 
true.  There may and probably are a few dogs down the line that got the 
carrier gene, but at 8 or 10 generations later you are talking only a very 
small percentage wise.    

Joe