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Summary
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Deutsch: 3. Mendelsche Regel: Unabhängigkeitsregel. Beide Yorkshire Terrier-Elterntiere sind an zwei Loci (Extension-Locus und S-Locus) heterozygot und zeigen die dominanten Phänotypen. Das Allel „E“ auf dem Extensionslocus sorgt für die Einlagerung von schwarzem Eumelanin im Fell. Das Allel „e“ auf dem Extensionslocus verhindert die Einlagerung von Eumelanin in das Fell, so dass nur die goldene "Tan" Farbe vorhanden ist. Das Allel S für die Pigmentierung des gesamten Fells (S auf dem S-Locus) ist dominant. Das Allel für die weiße Piebald-Scheckung (sP auf dem S-Locus) ist rezessiv (Genomia). Bei der Verpaarung zweier solcher Elterntiere sind bei den Welpen alle Kombinationen möglich, wobei die Merkmale Färbung und Piebald-Scheckung unabhängig voneinander vererbt werden. Durchschnittliches Zahlenverhältnis der Phänotypen 9:3:3:1.
English: Third Mendelian rule: Law of independent assortment. Both Yorkshire Terrier Parents are heterozygous at two loci (extension locus and S-locus), displaying the dominant phenotypes. The allele "E" on the extension locus provides the storage of black eumelanin in the coat. The allele "e" on the extension locus hinders the storage of eumelanin in the coat, so only the golden "Tan" colour is in the coat. The allele S for the pigmentation of the entire coat (S on the S-locus) is dominant. The allele for white Piebald spotting (sP on the S-locus) is recessive (Genomia). When two such parents breed, all combinations are possible in the puppies, whereby the traits of coloration and Piebald spotting are inherited independently of each other. Average number ratio of phenotypes 9:3:3:1. |
| Date | |
| Source | Own work, verwendete Fotos:File:Golddust Yorkshire Terrier 3.jpg, File:Black and Tan Yorkie walking 1.jpg, File:Blue and Tan Yorkshire Terrier.jpg, File:Yorkshire Terrier DSC 7590.jpg, File:Yorkshire Terrier Welpe 9 Wochen.jpg, File:Golden Yorkshire Terrier Welpe.png, File:Biewer Welpe Worms.jpg, File:Golddust Yorkshire Terrier 3 Monate.png. |
| Author | Sciencia58, (1 Foto von Goldmull) |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 19:10, 20 February 2025 | | 1,880 × 2,260 (2.3 MB) | Sciencia58 | so |
| 09:36, 10 February 2025 |  | 1,880 × 2,260 (2.29 MB) | Sciencia58 | so | |
| 09:22, 10 February 2025 |  | 1,880 × 2,260 (2.29 MB) | Sciencia58 | Uploaded own work with UploadWizard |
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