dihybrid ratio

例句：

1. 1. The geneticist calculated the dihybrid ratio of the new strain.
   遗传学家计算了新品种的杂种比例。
2. 2. The scientists found that the dihybrid ratio was higher than expected.
   科学家发现杂种比例高于预期。
3. 3. The dihybrid ratio is a crucial factor in determining the success of a hybrid plant.
   杂种比例是决定杂交植物成功的关键因素。