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Gaokao Biology Practice Question

下列实践活动包含基因工程技术的是 ( $\quad$ )

  1. A.水稻 $F_{1}$ 花药经培养和染色体加倍, 获得基因型纯合新品种
  2. B.抗虫小麦与矮秆小麦杂交, 通过基因重组获得抗虫矮秆小麦
  3. C.将含抗病基因的重组 DNA 导入玉米细胞, 经组织培养获得抗病植株
  4. D.用射线照射大豆使其基因结构发生改变, 获得种子性状发生变异的大豆

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