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分离定律与测交 · 历年高考生物真题与解析

本页汇总 高考真题检索 的「分离定律与测交」高考生物真题共 1 道,覆盖 2026 年,最常出题型为 单选题;含完整答案与解析。

1questions
Past questions included
2026
Years covered
区分题为主
Overall difficulty
Single-choice
Most common question type
Practice This Topic Do 5 reliable past questions first, then see the answers and explanations after you submit
常用解题方法图表分析遗传推理
常见易错点图表读错Missed a condition
Core competencies应用

Past Question List

2026 Anhui Gaokao Single choice Differentiating Question 11 2026_安徽选择性考试

11. 一对表型正常的夫妇,生育了一个常染色体单基因隐性遗传病患儿。为避免再生育患儿,可采用人类辅助生殖技术进行筛选。对家庭成员和体外受精获得的两个受精卵排出的极体分别进行DNA检测,结果如下图。电泳条带表示经限制酶切割后该对基因所在的DNA片段。据图判断(不考虑突变),可以选择用于移植的受精卵是

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A. 仅受精卵 1
B. 仅受精卵2
C. 受精卵1 和2
D. 都不可以

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