南瓜的花色是由一对等位基因控制的用一株开黄花的南瓜和一株开白花的南瓜杂交子代f1既有开黄花的也有开白花的让f1自交产生f2表现型 Template




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tomski南瓜的花色是由一对等位基因控制的用一株开黄花的南瓜和一株开白花的南瓜杂交子代f1既有开黄花的也有开白花的让f1自交产生f2表现型 coloring