The lower the concentration of bicoid protein in part of an embryo,

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Bicoid protein concentration gradients play a crucial role in determining the anterior-posterior axis in many organisms, particularly in Drosophila (fruit flies). A lower concentration of bicoid protein indicates the posterior end of an embryo, as the highest concentrations are typically found at the anterior end, where they help specify head and thorax structures.

The Lower the Concentration of Bicoid Protein in Part of an Embryo