两个亲本的基因型分别为aabb和aabb这两对基因按自由组合定律遗传要培育出基因型为aabb的新品种最简捷的方法是 a人工诱变育种 b Template




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tomski两个亲本的基因型分别为aabb和aabb这两对基因按自由组合定律遗传要培育出基因型为aabb的新品种最简捷的方法是 a人工诱变育种 b coloring