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【单选题】
下述基因打靶小鼠制备流程哪错误的。A.
胚胎干细胞培养、基因转移及中靶细胞克隆筛选
B.
受精卵显微注射，并移植到假孕母鼠，从而获得嵌合体
C.
基因的打靶载体设计及构建
D.
遗传育种及表型分析
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皮皮学刷刷变学霸
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A.
after
B.
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A.
Except for
B.
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