优先遗传父母一方的某些品种或品系具有的将自身特点传给后代的能力，并明显地排斥了父母另一方，另一种品种或品系的作用。
The ability of one parent, variety, or strain to transmit individual traits to an offspring, apparently to the exclusion of the other parent, variety, or strain.
由于他的肝脏除了自身遗传缺陷外，运转功能仍然良好，因此在众多等待肝脏移植的候选人中并不具有任何优先权。
Yet because his liver was functioning well, aside from its one defect, he would be a lower priority than many candidates for a cadaverliver transplant.
结论：中枢神经系统存在偏利现象，这种偏利现象可能与控制视神经髓鞘优先形成的某种遗传机制有关，或是中枢神经系统突触的局部构造、突触效能的差异。
Conclusion:There was lateralization in the central nervous system. The lateralization may be a reflection of differences in the topological organization of the synapses or in synaptic efficacy.
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