[ SHOWGSD-L ] Re: no coat factor / predictability
- From: Peggy <pmick12@xxxxxxxxxxx>
- To: Pinehillgsds@xxxxxxx
- Date: Tue, 21 Nov 2006 13:53:39 -0500
If you are going to use this example, which is a good one, you have
to begin by saying that Long Coats are recessive...in Kathy's example
she uses a C most of the time a recessive would be shown as a small
c but her statement is otherwise accurate.
If you remember how to do Punnet squares, from 9th grade biology, it
is easy to work out.............
Peggy
Pinehillgsds@xxxxxxx wrote:
> "Coats" are one of the easiest things to understand. A puppy will get one of
>two possible genes from each parent. Let's call a long coat "CC". A puppy
>will get a "C" from that parent. That's all they can get.
>
>A short coated dog CAN be Cc OR cc, let's let "c" = a short or normal coat.
>If a coated dog (CC) is bred to a short or normal coated dog with NO long
>coat gene (cc), there's no way the coat factor will express itself, however,
>each and every individual puppy from that breeding could produce coats since
>it got "C" from the coated parent.
>
>If you take a puppy from above, a short coated dog who is recessive for
>producing coats and breed it to a coat, Cc x CC, statistically, you should
>have
>half coats. (Each puppy will get one "C" and have a 50-50% shot at either a
>"C" or a "c"). The half who don't express the coat factor could produce coats
>since every puppy in the litter will receive a "C" from the coated parent.
>
>If you breed two dogs who carry the factor but don't express it, Cc x Cc,
>statistically, you should have 25% coats (CC), 50% recessive (Cc) and 25% who
>don't carry the long coat gene (cc).
>
>Can you look at a pedigree and tell? Usually. Most people know if there
>are coats in the background and/or if litter mates have produced coats.
>That's
>not AS certain, but given the last example above, statistically 75% of those
>puppies could produce coats, so it's a pretty good indication.
>
>Kathy
>member GSDCA, DVGSDC
>three generations of Dual Titled TC'd Champions live here!
>visit _Pine Hill German Shepherd Dogs_
>(http://www.geocities.com/pinehillgsds/)
>
>
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POST is Copyrighted 2006. All material remains the property of the original
author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind
are permitted without prior permission of the original author AND of the
Showgsd-l Management. ALL RIGHTS RESERVED.
ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY
MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS
PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY
FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE
PROSECUTED.
For assistance, please contact the List Management at admin@xxxxxxxxxxxx
VISIT OUR WEBSITE - URL temporarily deleted due to AOL issues
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