Gonna Try Breeding

ok, that's what i thought, only they;re gonna be 50% hets right?

so if one breeds a 100% het pied to a normal the offspring would all look normal of course and there would only be 50% het? then if you did get the right sex and cold tell which one was a het (no one i know believes in markers) then you would have offspring of normals and a 25% chance of visible morph? gosh i'm dizzy...

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Originally Posted by Deven

so if one breeds a 100% het pied to a normal the offspring would all look normal of course and there would only be 50% het?

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Yes, het recessive to normal produces all possible hets. Half are actually het, but you can't tell by looking at them because they all appear normal.

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Originally Posted by Deven

then if you did get the right sex and cold tell which one was a het (no one i know believes in markers) then you would have offspring of normals and a 25% chance of visible morph? gosh i'm dizzy...

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Huh?? I think you are trying to describe het recessive to het recessive?

Breeding het recessive to het recessive should statistically produce 25% homozygous (visual morph), 50% heterozygous, and 25% normal or "wild type". And again, since you wouldn't be able to diffentiate the normals from the hets, the approximate two thirds of the cluth that wasn't homozygous would be referred to as 66% possible hets.

-adam

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so if one breeds a 100% het pied to a normal the offspring would all look normal of course and there would only be 50% het?

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It's because so many of the possible hets have the marker from het and possible het parents with the marker that some of us believe in it. Basically because they don't all look normal we think there is something going on.

I've seen quotes from big pied breeders indicating they feel they can identify many het pieds on sight.

so then if i send you photos, when i can, of the bottoms would you be able to tell me what i've got? i've been told they were peids - het for pied and one has a clear belly the other is just loaded with black spots.
i'd do this off line though. email me direct if you can help.

I could guess.

People who have actually produced pieds could probably guess better.

I just believe the odds of a possible het with the mark being a het are much better than the odds of a sibling possible het without the mark. Now if you have a known het without the mark and none of the clutch has the mark then maybe they are all really 50% hets rather than some with higher and some with lower odds.