dominancen.支配；控制；统治；优势；【生】优势度，显性dominance deviation显性离差dominance principle控制原则dominance frequency优势频率dominance structure优势结构dominance condition主导条件dominance theaching显性教育dominance relations优势关系dominance pleiotropy显性多效性Dominance Evaluation优势分析dominance hypothesis显性假说:关于杂种优势