are a sub-class of Xanthophores. Xanthophores are but one type of Chromatophore. True (= full) axanthism would result in the lack of yellows and reds.

Pigment production and deposition within each Chromatophores is the result of a biochemical cascade (like a chain of reactions). A malfunction at any step along any of the steps in these cascades can cause issues in the production or deposition of a given pigment. The Tyrosinase positive and Tyrosinase negative forms of amelanism are but one example (but note that most of our hypotheses regarding the identification of "T " and "T-" amelanism in herps have NOT been tested).

-Cole

[ Hide Replies ]

• Rextiles and others... - CBH, Wed Nov 17 09:01:58 2010
• Examples - CBH, Wed Nov 17 09:03:17 2010
• Lots of typos.... Sorry! NP - CBH, Wed Nov 17 09:08:15 2010
• I agree, Chris... - Sunherp, Wed Nov 17 17:23:50 2010
• RE: Rextiles and others... - Rextiles, Wed Nov 17 19:40:32 2010
• RE: Rextiles and others... - vjl4, Thu Nov 18 11:28:05 2010
• RE: Rextiles and others... - Rextiles, Thu Nov 18 13:38:09 2010
• RE: Rextiles and others... - Gregg_M_Madden, Thu Nov 18 19:48:57 2010
• RE: Rarely asked, not rearely... LOL.. - Gregg_M_Madden, Thu Nov 18 19:49:54 2010
• RE: Rextiles and others... - Rextiles, Fri Nov 19 12:45:36 2010
• RE: Rextiles and others... - vjl4, Fri Nov 19 14:02:52 2010
• RE: Rextiles and others... - Gregg_M_Madden, Fri Nov 19 15:03:01 2010
• Axanthic vs. Anerythristic - Sunherp, Fri Nov 19 16:41:37 2010
• RE: Axanthic vs. Anerythristic - Gregg_M_Madden, Fri Nov 19 16:59:36 2010
• RE: More.... - Gregg_M_Madden, Fri Nov 19 17:09:33 2010
• Erythrophores... - Sunherp, Mon Nov 22 10:54:00 2010
• RE: Erythrophores... - Rextiles, Mon Nov 22 12:15:28 2010
• More on genetics and Chromatophores - Sunherp, Mon Nov 22 11:21:18 2010
• Axanthics versus Anerythristics - Rextiles, Fri Nov 19 18:07:09 2010