2010 Shanghai Question 12 Single-choice Differentiating 2010_上海卷 (生物) 11.一对灰翅昆虫交配产生的91只后代中,有黑翅22只,灰翅45只,白翅24只。若黑翅与灰翅昆虫交配,则后代中黑翅的比例最有可能是 A. 33%B. 50%C. 67%D. 100% Answer keyB ☆ SaveCan't do it, show the explanation查看原卷 →