heavy chain of antibody

例句：

1. 1.The heavy chain of the antibody is responsible for binding to the antigen.
   抗体的重链负责与抗原结合。
2. 2. The antibody chain plays a crucial role in immune response.
   抗体链在免疫反应中起着关键作用。
3. 3.The antibody chain is composed of different types of antibodies that work together to fight off infections.
   抗体链由不同类型的抗体组成，它们协同工作以抵御感染。