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Common Misconceptions

This is a discussion on Common Misconceptions within the Horse Talk forums, part of the Keeping and Caring for Horses category

     
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        07-21-2009, 10:51 PM
      #11
    Trained
    I'm fairly sure that it doesn't exist, it may be lethal white you are thinking of? Maybe not, I could be wrong, but that's what I was always told :]
         
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        07-21-2009, 11:03 PM
      #12
    Green Broke
    Why do dogs and cats come in albinos but horses don't?
         
        07-21-2009, 11:04 PM
      #13
    Weanling
    ??????? No idea
         
        07-21-2009, 11:12 PM
      #14
    Trained
    I don't know. Rats and mice and many other mammals do as well.
         
        07-21-2009, 11:36 PM
      #15
    Yearling
    I looked it up and this is what I found:

    "Albinism is caused by a recessive gene, meaning an animal must carry 2 copies of the gene, one from each parent, in order to express the color (or rather, lack there of). One copy of the gene has no effect on coat color. Because of this, 2 albinos bred together will always produce an albino. This simply does not happen in horses because no white horse's coat is caused by a recessive gene, and none of these white horses breed true as an albino would."

    I really don't understnad genetics; can anyone explain this?
         
        07-21-2009, 11:48 PM
      #16
    Trained
    Ugh, I hate genetics. Goes through one ear and out the other! Does seem to make sense at first reading though.
         
        07-22-2009, 12:16 AM
      #17
    Foal
    I'm taking a goat genetics class....so let me try to explain.
    Genes come in pairs. Half are from the dad, half are from the mom. Each set of genes is completely random. If each parent carries the albino gene and is part of those randomly selected genes and they match up you get an albino. That's why their so rare. You have to have both genes match up because they are recessive, not dominate. You only need one dominate gene for that characteristic to show up. I hope that makes sense
    What I think they're trying to say is that if you breed two white horses together you don't necessarily get a white horse (completely guessing on this!)
         
        07-22-2009, 12:23 AM
      #18
    Trained
    I did an entire "misconceptions" thread. Unfortunately it made everyone angry and got locked :P
         
        07-22-2009, 12:28 AM
      #19
    Yearling
    To me it sounds like they are saying you can't have an albino horse because the albino gene is recessive but in horses the white gene is dominante so you can't have an albino horse. That doesn't make sence because the white gene is different from the albino gene, but it sounds like they are saying it's the same thing. Does anyone get what I'm saying?
         
        07-22-2009, 02:04 AM
      #20
    Showing
    Quote:
    Originally Posted by Spastic_Dove    
    I did an entire "misconceptions" thread. Unfortunately it made everyone angry and got locked :P

    Bahahaha!

    Sorry.

    Carry on.
         

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