Search Results - "Ibsen, Heman L."

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    Horn and Scur Inheritance in Certain Breeds of Sheep by Ibsen, Heman L.

    Published in The American naturalist (01-11-1944)
    “…(1) All sheep are postulated to be homozygous for H, the gene for horns. (2) The gene P (polled) is epistatic to H. Polled breeds are thus PPHH and horned…”
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    Journal Article
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    The Inheritance of Salmon-Eye in Guinea-Pigs by Gregory, P. W., Ibsen, Heman L.

    Published in The American naturalist (01-03-1926)
    “…Salmon-eye is due to a single gene (sm), which causes the eye to have a pinkish appearance due to the absence of all pigment from the iris with the exception…”
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    Journal Article
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    Inheritance of Congenital Palsy in Guinea-Pigs by Cole, Leon J., Ibsen, Heman L.

    Published in The American naturalist (01-03-1920)
    “…1. A definite neurosis appeared in our guinea-pig stock in 1914, characterized by clonic spasms, particularly of the legs. When in a spasm the animals lie on…”
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    Journal Article
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