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Are fish scales homologous with amniote scales? Why?

17th Nov 2012 20:44:58

Question from:Walter

are fish scales homologous with amniote scales? Why?

22nd Nov 2012 13:31:11

Ajna Rivera

University of the Pacific, California, USA
Posts: 153

Probably not - fish scales come from dermal (mesoderm) tissue while reptile scales come from epidermal (ectoderm) tissues and, unlike fish scales are made of keratin. Fish scales are more similar to teeth.

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