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Gaokao Biology Practice Question

在家畜优良品种培育过程中常涉及胚胎工程的相关技术。下列叙述错误的是( )

  1. A.经获能处理的精子才能用于体外受精
  2. B.受精卵经体外培养可获得早期胚胎
  3. C.胚胎分割技术提高了移植胚胎的成活率
  4. D.胚胎移植前需对受体进行选择和处理

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