trisomic ratio

例句：

1. 1.The geneticist calculated the trisomic ratio of the new species.
   遗传学家计算了新物种的三体比例。
2. 2.In the study, researchers found a correlation between the trisomic ratio and disease susceptibility.
   在研究中，研究人员发现三体比例与疾病易感性之间存在关联。
3. 3. The scientists were surprised to find that the trisomic ratio was higher than expected.
   科学家们惊讶地发现，三体比例比预期的要高。