用纯种高茎豌豆与矮茎豌豆作杂交实验时需要a.以高茎作母本矮茎作父本b.以矮茎作母本高茎作父本c.对父本去雄授以母本花粉d.对母本去雄 Template




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tomski用纯种高茎豌豆与矮茎豌豆作杂交实验时需要a.以高茎作母本矮茎作父本b.以矮茎作母本高茎作父本c.对父本去雄授以母本花粉d.对母本去雄 coloring