In case of platelets, progenitor cells differentiate into megakaryocytes, which are responsible for creating platelets.

在血小板的生成过程中，造血分化成巨核；由巨核来造血小板。

When it binds, those cells activate the JAK2 gene which makes them divide and mature into megakaryocytes and platelets.

当结合后，JAK2基因，促使这些分化、成熟，变为巨核和血小板。

Platelets. The blood platelets are actually cell fragments rather than complete cells. Platelets are formed in the bone marrow from giant multinucleated cells called megakaryocytes.

血小板。血小板实际上是碎片而不是完整的。血小板在骨髓中形成，来自于被称为巨核的巨大的多核的。