[ SHOWGSD-L ] Re: Black Recessive
- From: "Castle Kennels" <castlegsd@xxxxxxxxxxxxx>
- To: <SHOWGSD-l@xxxxxxxxxxxxx>
- Date: Mon, 4 Apr 2005 10:22:17 -0500
_____
The other puppies may, but don't necessarily, carry the black recessive.
They could have gotten each parent's other gene (the not black gene--you
didn't say what color the parents are although I assume they're black and
tan since the babies are not sable.)
Your four puppies, one black, three black and tan is a PERFECT example of
the usual genetic averages. With parents carrying black factor but not
being black, chances are 25% of your pups will be black (that's 1 in 4, lol)
and 50% will carry black but be black and tan (that's 2 of 4) and 25% (one
pup) will be and carry only black and tan.
I forgot to mention that both parents of these puppies are black & red. The
mother's sire was solid black. The mother's dam is black and red. She (the
grandmother) came out of a litter with three solid black siblings and her
parents (puppies' great grandparents) were black & red (sire) and black &
tan (dam). So, in these four generations, there was only one solid black
not counting my puppy.
The genetic average is less than 25% because two puppies were born dead in
this litter (6 total) and they were both black & tan males.
This is fascinating stuff!
Pat
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