"Hereditary" chimeric? - The Horse Forum
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post #1 of 13 Old 11-29-2010, 02:11 PM Thread Starter
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"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...
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post #2 of 13 Old 11-29-2010, 04:46 PM Thread Starter
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Lol....maybe too much coffee and too little sleep? Haha

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post #3 of 13 Old 11-29-2010, 04:57 PM
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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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post #4 of 13 Old 11-29-2010, 05:04 PM Thread Starter
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Lol...well I am glad it makes sense at least. I didnt turn up any answers with google.

Anyone? Anyone? Lol

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post #5 of 13 Old 11-29-2010, 05:56 PM
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Those brindles who pass on brindle are not chimeric.
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post #6 of 13 Old 11-29-2010, 05:58 PM
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Quote:
Originally Posted by CheyAut View Post
Those brindles who pass on brindle are not chimeric.
So what are they then?
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post #7 of 13 Old 11-29-2010, 06:15 PM Thread Starter
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Originally Posted by CheyAut View Post
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.....

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post #8 of 13 Old 11-29-2010, 06:40 PM
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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.

Mods, grant me the serenity to see the opinions I cannot change, courage to change the ones that should change, and the wisdom to spot the trolls.
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post #9 of 13 Old 11-29-2010, 06:50 PM Thread Starter
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Ahhh...i see. I didnt realize it was just the female that passed it on. Got it...thanks!

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post #10 of 13 Old 11-29-2010, 06:52 PM
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The male can pass on the chance to have the gene to his daughters.

Mods, grant me the serenity to see the opinions I cannot change, courage to change the ones that should change, and the wisdom to spot the trolls.
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