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German Shepherd Database Project

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    Pedigree of

    Guide Dogs Rosie

    June 14, 1955
    AKC W989771
    Breeder: Guide Dogs for the Blind Inc

    Notes: COI: 6.16%

    Guide Dogs Hero
    November 21, 1952
    AKC W970927
    Black, Tan

    Frank of Ledge Acres
    December 8, 1947
    AKC W144766
    Black, Tan

    Vosefeld's Arras

    October 26, 1944
    AKC A989282
    Tan, Black Markings

    Helen of Ledge Acres
    June 8, 1946
    AKC W52042
    Grey, Dark Mask

    Guide Dogs Hula
    January 17, 1951
    AKC W970926
    Black, Tan

    Guide Dog O'Henry
    May 16, 1949
    W924490 [5-59]
    Black, Tan

    Guide Dogs Doris
    December 31, 1946
    AKC W112089

    Guide Dogs Gay
    October 2, 1952
    AKC W989765
    Black, Tan

    Guide Dogs Beau
    July 21, 1951
    AKC W989764
    Black, Tan

    Guide Dogs Flash
    January 7, 1950
    AKC W989763
    Black, Tan

    Britta von Modenapark
    February 22, 1946
    AKC W739098 (Import)
    Black, Silver, Tan

    Gerda of Powellhurst
    August 26, 1949
    AKC W187892
    Black, Tan

    Correct D'Sign of Powellhurst
    February 6, 1948
    AKC W133891
    Black, Tan

    Ramona of Powellhurst
    March 8, 1947
    AKC W64698
    Black, Tan

    Legend for German Shepherd Gene Study
      White Carrier
      Black Carrier

    The German Shepherd Gene Study tracks the recessive "masking" white and recessive black genes forward through the generations.

    Genes come in different varieties, called alleles. Somatic cells contain two alleles for every gene, with one allele provided by each parent. Often, it is impossible to determine which two alleles of a gene are present within an dog's chromosomes based solely on the outward appearance of that dog. However, an allele that is hidden, or not expressed by, can still be passed on to that dog's offspring and expressed in a later generation.

    German Shepherds can carry one or both of the recessive white "masking" and/or the recessive black gene.

    (A masking gene masks the real color and pattern of the dog. The only way the gene can be expressed in some of the offspring is if both parents carry it. For example, when a white dog is bred to a non-white dog that does not carry the white gene, none of the offspring will express the white coat but they will be carriers of the white gene. If those offspring are bred to a white, some of their offspring will express the white coat color. White bred to white will always produce white offspring.)

    German Shepherd artwork on this site created by AHEAD Graphics. Visit their site for more talented artwork and custom designs.

    The German Shepherd Dog Database Project makes no guarantees as to the accuracy of the data published at this site. We have made every effort to verify all entries, but the German Shepherd Dog Database Project is not a registry so all data included has been submitted by dog owners or taken from registry reports and AKC Stud Books. Please contact us to report any errors or omission.

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