Which developmental consequence occurs when a Tokay Gecko embryo lacks thyroid hormone receptors during initial development?

💡 Explanation

When thyroid hormone receptors are absent in the developing gecko, the disruption of retinoid signaling pathways causes impaired epithelial placode differentiation because these pathways regulate scale morphogenesis. Therefore disrupted scale pattern formation results, rather than the other options which involve nutritional absorption, limb development or coloration changes primarily regulated via gene activation later.

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