But definitive diagnosis needs to be made based on the histologic and molecular characteristics of a tissue biopsy.

但确诊需要基于组织活检的组织学与分子学特征。

But specific courses of treatment are guided by the molecular characteristics of the tumor based on the biopsy.

但特定的疗程是基于肿瘤组织活检的分子学特征。

Cancer cells are masters of adaptation, adjusting their molecular and cellular characteristics to survive under stress.

癌细胞是适应的大师，调整它们的分子和细胞特征以在压力下生存。