Date of Award

Spring 1951

Degree Type

Thesis - Restricted

Degree Name

Master of Science (MS)



First Advisor

Saunders, John W.

Second Advisor

McDonough, E. S.

Third Advisor

Reis, R. H.


Melanin pigments are known to be widely distributed throughout living forms, both plant and animal. In the vertebrate animals especially, the origin of the pigment-producing cell, the control of coloration and color pattern and the biochemical mechanisms underlying the synthesis of melanin constitute problems which have attracted numerous investigators. The present paper represents an attempt to determine the precursor substance from which melanin pigments are synthesized in the living skin of the chick embryo.



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