大豆的白花和紫花为一对相对性状。下列四组杂交实验中，能判定性状显隐性关系的是①紫花×紫花→紫花②紫花×紫花→301紫花＋110白花③紫花×白花→紫花④紫花×白花→98紫花＋107白花

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大豆的白花和紫花为一对相对性状。下列四组杂交实验中，能判定性状显隐性关系的是（）
①紫花×紫花→紫花 ②紫花×紫花→301紫花＋110白花
③紫花×白花→紫花 ④紫花×白花→98紫花＋107白花

A：①和②

B：②和③

C：③和④

D：①和④

上一题下一题 0.0难度选择题更新时间:2019-06-20 04:57:21

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B

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