The correct answer is option eosinophil: bacterial macrophage
Eosinophil is responsible for defense against parasitic infections and few are involved in organ formation.
I believe the answer is gene splicing
Nanotechnology offers the means to target chemotherapies directly and selectively to cancerous cells and neoplasms, guide in surgical resection of tumors, and enhance the therapeutic efficacy of radiation-based and other current treatment modalities.