(magn. 44730x)

Cross section showing developing eumelanosomes in the choroid of a black eyed young Budgerigar.
The eumelanosomes are surrounded by coated vesicles carrying reaction products [17].
In this stage tyrosinase activity is very high.

Photograph copied from the thesis of Dr. H. Wilken (1998).
By courtesy of Dr. A. Boos (School of Veterinary Medicine Hannover, Germany)

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©Inte Onsman
MUTAVI Research & Advice Group