单词 | stable polymorphism |
释义 | stable polymorphismstable polymorphismaverage PHENOTYPE with reduced variation in the range. See Fig. 287 . A good example of stabilizing selection is human birthweight where, under natural conditions, babies are subject to selection pressure if they are too small at birth (with immaturity of body systems) or too large (resulting in difficulties in delivery related to the size of the mother's pelvis). Compare DISRUPTIVE SELECTION.stable polymorphismsee BALANCED POLYMORPHISM. |
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