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Studies of multiple allelomorphic series in the house-mouse

III. A spectrophotometric study of mouse melanin

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Summary

The absorption spectra of melanins from the hair of mice of various colours and of known genotypes have been determined. They do not differ significantly. Hence the changes in coat colour seem to be due to quantitative variations in the pigment rather than to qualitative ones. This seems, moreover, to be the same pigment that is present in the hair of at least two varieties of horses. However, the possibility that scattering rather than true absorption is involved has not been entirely ruled out.

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References

  1. Dunn, L. C. (1936). “Studies of multiple allelomorphic series in the house-mouse. I. Description of agouti and albino series of allelomorphs.”J. Genet. 33, 443–53.

  2. Dunn, L. C. &Einsele, W. (1938). “Studies of multiple allelomorphic series in the house-mouse. IV. Quantitative comparisons of melanins from members of the albino series.”J. Genet. 36, 145–52.

  3. Einsele, W. (1937). “Studies of multiple allelomorphic series in the house-mouse. II. Methods for the quantitative estimation of melanin.”J. Genet. 34, 1–18.

  4. Mecklenburg, W. (1915). “Über die Beziehungen zwischen Tyndalleffekt und Teilchengrösse kolloidaler Lösungen.”Kolloidzschr. 16, 97–103.

  5. Zwicky, H. &Almasy, F. (1935). “Optische Untersuchungen über das Haarpigment.”Biochem. Z. 281, 103–10.

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Author information

Correspondence to Janet Daniel.

Additional information

The experiments have been carried out with financial support from the Fund for Research of Columbia University.

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Daniel, J. Studies of multiple allelomorphic series in the house-mouse. Journ. of Genetics 36, 139 (1938). https://doi.org/10.1007/BF02982378

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Keywords

  • Coat Colour
  • Depa
  • True Absorption
  • Monotone Character
  • Boiling Time