"Hereditary" chimeric?

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"Hereditary" chimeric?

This is a discussion on "Hereditary" chimeric? within the Horse Colors and Genetics forums, part of the Horse Breeds, Breeding, and Genetics category

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    11-29-2010, 03:11 PM
"Hereditary" chimeric?

I have been wondering....about chimeric againLol

Soooo.....in humans if you are a twin or your mother had a set of twins, or you have many twins in your family,etc. You are more likely to have twins yourself (some,but not all types of twins are hereditary)

Then....in chimeric horses the same thing happens....twins are believed to have fused. So in these brindles stallions producing "brindle" offspring couldnt they really just be chimeric because even though chimeric isnt "heridetary" the chance of having more sets of twins IS and thus have a much higher chance of producing twins. And a higher chance of them fusing to produce chimeric?

So it kinda makes the chimeric somewhat hereditary anyways?

I hope this makes sense....lol...
Opinions? Thoughts?
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    11-29-2010, 05:46 PM
Lol....maybe too much coffee and too little sleep? Haha
    11-29-2010, 05:57 PM
Your theory makes sense...but I have no clue! Would love to see some answers to this. Have you tried google at all?
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    11-29-2010, 06:04 PM
Lol...well I am glad it makes sense at least. I didnt turn up any answers with google.

Anyone? Anyone? Lol
    11-29-2010, 06:56 PM
Those brindles who pass on brindle are not chimeric.
    11-29-2010, 06:58 PM
Originally Posted by CheyAut    
Those brindles who pass on brindle are not chimeric.
So what are they then?
Posted via Mobile Device
    11-29-2010, 07:15 PM
Originally Posted by CheyAut    
Those brindles who pass on brindle are not chimeric.

But chimeric is still kind of hereditary then? Even though the "color" is not...the actual occurance is? I think.....
    11-29-2010, 07:40 PM
Piaffe - I have twins IRL so I know a bit about them, so bear with my lengthy rambling.

The ability to have FRATERNAL twins is genetic. It is passed to a female from her family. It is a genetic pre-disposition to release more than one egg in an ovulation cycle. It has nothing to do with the male half in a breeding situation - he can pass on the predisposition to his daughters, but can't make it happen in his mate. ALL chimeric horses that display two colours are fraternal twins.

Identical twins are random chance. There are lots of theories, but no one knows why the egg splits.

Hope this helps, feel free to ask because there is lots I know about twins lol.
    11-29-2010, 07:50 PM
Ahhh...i see. I didnt realize it was just the female that passed it on. Got it...thanks!
    11-29-2010, 07:52 PM
The male can pass on the chance to have the gene to his daughters.

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