Image: Butterflywiki
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Description: Developing foci in both the anterior and posterior portions of the wings of some butterflies. A focus is an area which controls the development of some morphological feature, here pigmentation, during embryo development. Yellow circles indicate areas of increased hedgehog (Hh) gene expression.
Title: Butterflywiki
Credit: Own work
Author: Natalya11
Usage Terms: Creative Commons Attribution 3.0
License: CC BY 3.0
License Link: http://creativecommons.org/licenses/by/3.0
Attribution Required?: Yes
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