Life is self-organising chemistry, and on Earth it requires access to several different elements besides the hydrogen and oxygen that make up water.

生命是一种自组织化学，在地球上，除了组成水的氢和氧之外，要几种不同的元。

Many modern molecular tests such as flow cytometry, polymerase chain reaction (PCR), In situ hybridization, immunohistochemistry, cytogenetics and gene rearrangements studies fall within the territory of pathology.

许多子检测，如流式细胞术，聚合酶链反应（PCR），原位杂交，免疫组织化学，细胞遗传学和基因重排研究都属于病理学领域。