additional genetic material

例句：

1. 1. The studyfound that the addition of certain vitamins canimprove the health of the elderly.
   研究发现，添加某些维生素可以改善老年人的健康。
2. 2. The researchteam analyzed the additional genetic material in thesample to determine its origins.
   研究小组分析了样本中的额外遗传物质，以确定其来源。
3. 3. The scientist discovered an additional geneticmaterial that could potentially cure cancer.
   科学家发现了一种额外的遗传物质，可能有助于治疗癌症。