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Genetics!
#38156
02/26/05 01:32 AM
02/26/05 01:32 AM
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Anonymous
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Anonymous
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I hope I'm posting this in the right place...
Chad & I have been doing some research on leucistics and it occurred to me that I don't really understand the genetics behind breeding.
I do understand the whole dominance & recessive thing but how do they figure out the precentages? For example Toandfrogliders has info on 66% Het Leucistics- how do they know it's 66%? Is it just the basic genetics square & probability or is there testing done?
Maybe this is a question for ToandFroGliders?
Gracias! <img src="/ubbthreads/images/graemlins/multi.gif" alt="" />
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Re: Genetics!
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#38157
02/26/05 01:51 AM
02/26/05 01:51 AM
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Anonymous
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If you breed 2 100% hets together then you get a 66% het. and I know I will be thinking of more. I live close to you I think
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Re: Genetics!
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#38158
02/26/05 01:52 AM
02/26/05 01:52 AM
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Anonymous
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the 66% can become a 100% if it breeds to a leucistic or another het and has a white baby. any more questions?
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Re: Genetics!
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#38159
02/26/05 01:59 AM
02/26/05 01:59 AM
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Anonymous
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So it's basically just your standard 8th grade genetics class squares & probability. That's what I thought but I wasn't sure. Thanks though! When Chad get's home I'll see if he has more questions because it was his to begin with and I couldn't remember <img src="/ubbthreads/images/graemlins/read.gif" alt="" />
<img src="/ubbthreads/images/graemlins/offtopic.gif" alt="" />
Yep- we are about 45 minutes from eachother, I know cuz I like to shop in the Lansing area. Have you been to Preuss Pet Store? I can't remember if that's the whole name. I haven't been there since I got my gliders but I wanna go back to see if they have anything they might like.
Thanks for a speedy response! <img src="/ubbthreads/images/graemlins/multi.gif" alt="" />
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Re: Genetics!
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#38160
02/26/05 02:01 AM
02/26/05 02:01 AM
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Anonymous
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YEah I'm going to get a job there!! (PRUSSE OR SOMETHING LIKE THAT I DONT KNOW HOW TO SPELL IT) Also it is like 8th grade genetics!
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Re: Genetics!
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#38161
02/26/05 04:19 AM
02/26/05 04:19 AM
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Anonymous
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</font><blockquote><font class="small">Quote:</font><hr /> For example Toandfrogliders has info on 66% Het Leucistics- how do they know it's 66%? Is it just the basic genetics square & probability or is there testing done?
<hr /></blockquote><font class="post"> The reason that they would call a glider a 66% het is because it is out of a het x het breeding. Out of het x het breeding, with four offspring by virtue of basic genetic(Punnett square, Mendelian Genetic) principles you will likely get one normal grey, two hets and one leucistic. The chances of the standard colored gliders being hets would be 66% since two out of three standards would be hets, and the fourth glider would be a leucistic, thus removing it from the pool of possible hets, you see? The chances of a standard glider from a het x het breeding being a het are 66%. This has been shown to be represented consistently in the offspring of het x het breedings according to those who have bred leucistics and leucistic hets. The figure is also an easy way of differentiating between possible hets from het x normal breedings from offspring out of het x het breedings.
Possible hets from het x normal breedings are described as being 50% hets since 50% of the offspring(which will all be standard) will carry the leucistic gene. None will be leucistic.
A glider born out of a leucistic x normal(or any other variation) breeding will always be a standard and they will all be hets aka a 100% het. Hope that helped <img src="/ubbthreads/images/graemlins/thumb.gif" alt="" />
Last edited by big ern!; 02/26/05 07:41 AM.
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Re: Genetics!
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#38163
02/26/05 08:18 AM
02/26/05 08:18 AM
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Anonymous
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In regards to leucistics, yes, leucistics can and have been produced out of two hets.
As far as wf hets producing wf's, I'm not certain, but I recall hearing that it has been done, but for the most part one shouldn't hold their breath for a wf to come out of two wf hets.... Most people without hesitation call a glider born out of one wf parent and one standard, a het, but is it really a certain het? It isn't fully understood how the wf gene is passed, however leucistic genes seem to show some consistency with punnett squares. I've seen the question posed a number of times about wf het breedings, no sufficient answer yet?
I'm sure Judie or Sheila would be good people to answer that question.
Last edited by big ern!; 02/26/05 08:21 AM.
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Re: Genetics!
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#38164
02/26/05 12:55 PM
02/26/05 12:55 PM
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Anonymous
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</font><blockquote><font class="small">Quote:</font><hr /> Possible hets from het x normal breedings are described as being 50% hets since 50% of the offspring(which will all be standard) will carry the leucistic gene. None will be leucistic.
A glider born out of a leucistic x normal(or any other variation) breeding will always be a standard and they will all be hets aka a 100% het. Hope that helped <img src="/ubbthreads/images/graemlins/thumb.gif" alt="" />
<hr /></blockquote><font class="post">
If you breed a wfb to a leucistic then it would be a 100% het and wfb or het for both.
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Re: Genetics!
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#38165
02/26/05 03:22 PM
02/26/05 03:22 PM
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Right, I forgot I added the (or any other variation) Ha!
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Re: Genetics!
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#38170
05/29/05 12:04 AM
05/29/05 12:04 AM
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Please make note that the parents of the het were both blondes. Their parents were also blondes. So please do not think that you can take a normal and a wfb het and produce. The genes are not strong mixing regulars with the wfb. More studies are being done as we speak.
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Re: Genetics!
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#38171
05/29/05 08:39 PM
05/29/05 08:39 PM
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Anonymous
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"In regards to leucistics, yes, leucistics can and have been produced out of two hets." I beleive more BEW babies have been born out of 2 het parent combination this year than out of any other combination.
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