孟德尔用纯种黄色圆粒豌豆和纯种绿色皱粒豌豆进行杂交实验,产生

孟德尔用纯种黄色圆粒豌豆和纯种绿色皱粒豌豆进行杂交实验,产生的F1是黄色圆粒。将F1自交得到F2F2的表现型分别为黄色圆粒、黄色皱粒、绿色圆粒、绿色皱粒,它们之间的数量比是

A1111       B3131      C3311     D9331

答案

D

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