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Thread: Spider question

  1. #1
    BPnet Veteran DC Reptiles's Avatar
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    Spider question

    Can siblings from a spider produce a spider if the siblings would be bred back to each other? I was talking to someone today and they told me this is true but I had never heard of that and I was curious if it was true or not?

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    BPnet Veteran llovelace's Avatar
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    Re: Spider question

    no, they can't
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    "The greatness of a nation and its moral progress can be judged by the way its animals are treated." - Gandhi

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    BPnet Veteran DC Reptiles's Avatar
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    Re: Spider question

    so with them being normals from a spider they wouldn't carry any of the genes? Just want to get my facts straight

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    BPnet Veteran llovelace's Avatar
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    Re: Spider question

    Check out what's available at


    "The greatness of a nation and its moral progress can be judged by the way its animals are treated." - Gandhi

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    DC Reptiles (07-26-2009)

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    BPnet Senior Member Boanerges's Avatar
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    Re: Spider question

    Quote Originally Posted by Paradox81 View Post
    so with them being normals from a spider they wouldn't carry any of the genes? Just want to get my facts straight
    That is correct. Either it is a spider or it isn't
    Jeff Bernard

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    Registered User Kirks_Herps's Avatar
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    Re: Spider question

    as i understand the genetics of a "normal" (normal meaning not carrying any other genetics) spider being co-dom you shoud get 50% spiders and 50% normals. the normals are just normals / non hets. Kirk

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    BPnet Veteran DC Reptiles's Avatar
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    Re: Spider question

    see thats what I thought with it being co-dominant but the guy I was talking to today tried telling me they could produce spiders. Thanks guys!!

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    BPnet Veteran takagari's Avatar
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    Re: Spider question

    Quote Originally Posted by Kirks_Herps View Post
    as i understand the genetics of a "normal" (normal meaning not carrying any other genetics) spider being co-dom you shoud get 50% spiders and 50% normals. the normals are just normals / non hets. Kirk
    Wrong.. Sorry

    Spiders do not yet have a super form. not proven unless it's changed recently.
    A spider to a normal would give you 25% spiders

    and even a spider to a spider isn't guaranteed to produce 50% spiders.

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    BPnet Veteran GenePirate's Avatar
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    Re: Spider question

    Quote Originally Posted by takagari View Post
    Wrong.. Sorry

    Spiders do not yet have a super form. not proven unless it's changed recently.
    A spider to a normal would give you 25% spiders

    and even a spider to a spider isn't guaranteed to produce 50% spiders.
    Actually a spider to a normal will produce 50/50 odds. A spider to a spider should produce 66% spider 33% normal because the evidence is weighing in on the side of homozygous lethality. (Otherwise it would be 25/50/25 normal/spider/super assuming each parent has one spider allele each).
    Last edited by GenePirate; 07-26-2009 at 08:48 PM. Reason: clarification

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    BPnet Veteran takagari's Avatar
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    Re: Spider question

    Spider is a dom*(sorry dom) there has yet to be proven a super form. there for a spider to a normal would give you 25% odds.

    Unless there is a super spider I know not of? and my spiders have been playing tricks on me?

    Edit:
    Actually a Super would give 100% spiders. I dont see how you can get 50%? maybe a spider to a spider would drop those odds. But than I believe the super form of the spiders dont survive

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